Related literature {#sec1}
==================

For common applications of materials with open framework structures, see: Yaghi *et al.* ( 2003[@bb10]); Kitagawa *et al.* ( 2004[@bb3]).  For literature on metal-organic compounds, see: Kaabi *et al.* ( 2010[@bb2]).  For a discussion of geometrical features in related structures, see: Min *et al.* ( 2009[@bb4]); Qing-Yan & Li (2005[@bb6]); Moloto *et al.* ( 2003[@bb5]). 

Experimental {#sec2}
============

 {#sec2.1}

### Crystal data {#sec2.1.1}

\[CdCl~2~(C~5~H~7~N~3~O)~2~\]*M* *~r~* = 433.57Monoclinic,*a* = 17.4204 (5) Å*b* = 7.5467 (2) Å*c* = 25.4422 (6) Åβ = 106.1333 (11)°*V* = 3213.07 (15) Å^3^*Z* = 8Mo *K*α radiationμ = 1.70 mm^−1^*T* = 293 K0.32 × 0.20 × 0.13 mm

### Data collection {#sec2.1.2}

Bruker APEXII CCD area-detector diffractometerAbsorption correction: multi-scan (*SADABS*; Sheldrick, 2003[@bb7]) *T* ~min~ = 0.676, *T* ~max~ = 0.80141891 measured reflections4494 independent reflections3924 reflections with *I* \> 2σ(*I*)*R* ~int~ = 0.033

### Refinement {#sec2.1.3}

*R*\[*F* ^2^ \> 2σ(*F* ^2^)\] = 0.023*wR*(*F* ^2^) = 0.108*S* = 1.274494 reflections190 parametersH-atom parameters constrainedΔρ~max~ = 0.74 e Å^−3^Δρ~min~ = −1.06 e Å^−3^

 {#d5e577}

Data collection: *APEX2* (Bruker, 2003[@bb1]); cell refinement: *SAINT* (Bruker, 2003[@bb1]); data reduction: *SAINT*; program(s) used to solve structure: *SHELXS97* (Sheldrick, 2008[@bb8]); program(s) used to refine structure: *SHELXL97* (Sheldrick, 2008[@bb8]); molecular graphics: *PLATON* (Spek, 2009[@bb9]); software used to prepare material for publication: *SHELXL97*. 

Supplementary Material
======================

Crystal structure: contains datablocks global, I. DOI: [10.1107/S1600536810035051/zs2058sup1.cif](http://dx.doi.org/10.1107/S1600536810035051/zs2058sup1.cif)

Structure factors: contains datablocks I. DOI: [10.1107/S1600536810035051/zs2058Isup2.hkl](http://dx.doi.org/10.1107/S1600536810035051/zs2058Isup2.hkl)

Additional supplementary materials: [crystallographic information](http://scripts.iucr.org/cgi-bin/sendsupfiles?zs2058&file=zs2058sup0.html&mime=text/html); [3D view](http://scripts.iucr.org/cgi-bin/sendcif?zs2058sup1&Qmime=cif); [checkCIF report](http://scripts.iucr.org/cgi-bin/paper?zs2058&checkcif=yes)

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: [ZS2058](http://scripts.iucr.org/cgi-bin/sendsup?zs2058)). 

This work was supported by the Fundação para a Ciência e a Tecnologia (FCT), under the scholarship SFRH/BD/38387/2008. 

Comment
=======

Open framework crystalline solids containing micro or mesoporisity have been studied extensively in recent years, due to their intriguing structures and considerable technological importance in magnetic, luminescent, porous and catalytic materials (Yaghi, *et al.*,  2003; Kitagawa, *et al.*,  2004).  In this work a new member of this family is presented, the title complex involving CdCl~2~ and the ligand 2-amino-4-hydroxy-6-methylpyrimidine, \[Cd(C~5~H~7~N~3~O)~2~Cl~2~\], (I) which was obtained during our studies on the preparation of new organometallic materials (Kaabi,*et al.*,  2010). 

In the atomic arrangement of the title compound, the distorted octahedral Cd environment comprises two chloride donor atoms and two N and two O donor atoms from two bidentate chelate organic ligands (Fig.  1).  The bond distances around the Cd atom \[Cd---N, 2.261 (2), 2.286 (2) Å; Cd---O, 2.624 (2), 2.692 (2) Å; Cd---Cl, 2.4674 (6), 2.4893 (7) Å\] are normal (Min *et al.*,  2009; Qing-Yan & Li, 2005; Moloto *et al.*,  2003).  The octahedra have intramolecular N---H···Cl hydrogen bonds and are interconnected by a set of N---H···Cl and N---H···O hydrogen bonds (Table 1) leading to the formation of a three-dimensional network structure (Fig.  2).  Among the hydrogen bonds, one is three-centred \[N6---H6B···(O2A,Cl3)\].  The overall packing pattern, presented in Fig.  3, shows that the different components of the title material are arranged so as to create pores extending along the *c* axis and located at (0, 0, 0) and (1/2, 1/2, 0).  Thus, this organic-inorganic hybrid open framework material could have potential application as a molecular sieve.  An examination of the organic moiety features shows that the bond distances for C2---O2 \[1.248 (3) Å\] and C2A---O2A \[1.255 (3) Å\] clearly indicate two double bonds.  This allows us to confirm that the first step of the preparation of the title compound consists of the transformation of the 2-amino-6-methyl-4-pyrimidinol into 2-amino-6-methylpyrimidin-4-(1*H*)-one.  However, the present investigation clearly shows that the N6---C6 \[1.332 (3) Å\] and N6A---C6A \[1.324 (3) Å\] distances are approximately equal to that of a C=N double bond length, indicating that N3 and N6 nitrogen atoms of the amino group are probably in an *sp*^2^ hybridization.  These bond length features are consistent with imino resonance and suggest a large contribution from it to the stability of the title compound. 

Experimental {#experimental}
============

A solution of CdCl~2~ (37 mg, 0.2 mmol) in water (6 ml) was added dropwise to a solution of 2-amino-4-hydroxy-6-methylpyrimidine (50 mg, 0.4 mmol) in ethanol (6 ml).  After stirring for 30 min, the mixture was filtered and the resultant solution allowed to evaporate at room temperature.  Crystals of the title compound, which remained stable under normal conditions of temperature and humidity, were isolated after several days and subjected to X-ray diffraction analysis (yield 58%). 

Refinement {#refinement}
==========

All H atoms were located in a difference Fourier synthesis but were placed in calculated positions and allowed to ride on their parent atoms, with C---H~aromatic~ = 0.93 Å, C---H~methyl~ = 0.96 Å and N---H = 0.86 Å, and with U~iso~ = 1.2--1.5U\</i~eq~(C). 

Figures
=======

![ A view of the title compound, showing the atom numbering scheme.  with 50% probability displacement ellipsoids.](e-66-m1225-fig1){#Fap1}

![ The packing of (I) viewed down the b axis.  Hydrogen bonds are denoted by dashed lines.](e-66-m1225-fig2){#Fap2}

![ The packing of (I) viewed down the c axis.  Hydrogen bonds are denoted by dashed lines.](e-66-m1225-fig3){#Fap3}

Crystal data {#tablewrapcrystaldatalong}
============

  ------------------------------- ---------------------------------------
  \[CdCl~2~(C~5~H~7~N~3~O)~2~\]   *F*(000) = 1712
  *M~r~* = 433.57                 *D*~x~ = 1.793 Mg m^−3^
  Monoclinic, *C*2/*c*            Mo *K*α radiation, λ = 0.71073 Å
  Hall symbol: -C 2yc             Cell parameters from 9775 reflections
  *a* = 17.4204 (5) Å             θ = 3.0--29.3°
  *b* = 7.5467 (2) Å              µ = 1.70 mm^−1^
  *c* = 25.4422 (6) Å             *T* = 293 K
  β = 106.1333 (11)°              Flat prism, colourless
  *V* = 3213.07 (15) Å^3^         0.32 × 0.20 × 0.13 mm
  *Z* = 8                         
  ------------------------------- ---------------------------------------

Data collection {#tablewrapdatacollectionlong}
===============

  --------------------------------------------------------------- --------------------------------------
  Bruker APEXII CCD area-detector diffractometer                  4494 independent reflections
  Radiation source: fine-focus sealed tube                        3924 reflections with *I* \> 2σ(*I*)
  graphite                                                        *R*~int~ = 0.033
  φ and ω scans                                                   θ~max~ = 29.5°, θ~min~ = 1.7°
  Absorption correction: multi-scan (*SADABS*; Sheldrick, 2003)   *h* = −24→24
  *T*~min~ = 0.676, *T*~max~ = 0.801                              *k* = −10→10
  41891 measured reflections                                      *l* = −35→35
  --------------------------------------------------------------- --------------------------------------

Refinement {#tablewraprefinementdatalong}
==========

  ------------------------------------- -------------------------------------------------------------------------------------------------
  Refinement on *F*^2^                  Primary atom site location: structure-invariant direct methods
  Least-squares matrix: full            Secondary atom site location: difference Fourier map
  *R*\[*F*^2^ \> 2σ(*F*^2^)\] = 0.023   Hydrogen site location: inferred from neighbouring sites
  *wR*(*F*^2^) = 0.108                  H-atom parameters constrained
  *S* = 1.26                            *w* = 1/\[σ^2^(*F*~o~^2^) + (0.0634*P*)^2^ + 0.0986*P*\] where *P* = (*F*~o~^2^ + 2*F*~c~^2^)/3
  4494 reflections                      (Δ/σ)~max~ \< 0.001
  190 parameters                        Δρ~max~ = 0.74 e Å^−3^
  0 restraints                          Δρ~min~ = −1.06 e Å^−3^
  ------------------------------------- -------------------------------------------------------------------------------------------------

Special details {#specialdetails}
===============

  --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  Geometry.  All e.s.d.\'s (except the e.s.d.  in the dihedral angle between two l.s.  planes) are estimated using the full covariance matrix.  The cell e.s.d.\'s are taken into account individually in the estimation of e.s.d.\'s in distances, angles and torsion angles; correlations between e.s.d.\'s in cell parameters are only used when they are defined by crystal symmetry.  An approximate (isotropic) treatment of cell e.s.d.\'s is used for estimating e.s.d.\'s involving l.s.  planes. 
  Refinement.  Refinement of *F*^2^ against ALL reflections.  The weighted *R*-factor *wR* and goodness of fit *S* are based on *F*^2^, conventional *R*-factors *R* are based on *F*, with *F* set to zero for negative *F*^2^. The threshold expression of *F*^2^ \> σ(*F*^2^) is used only for calculating *R*-factors(gt) *etc*.  and is not relevant to the choice of reflections for refinement. * R*-factors based on *F*^2^ are statistically about twice as large as those based on *F*, and *R*- factors based on ALL data will be even larger.  5 reflections were affected by the beamstop. 
  --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å^2^) {#tablewrapcoords}
==================================================================================================

  ------ --------------- -------------- --------------- -------------------- --
         *x*             *y*            *z*             *U*~iso~\*/*U*~eq~   
  Cd1    0.049831 (10)   0.66207 (2)    0.118222 (6)    0.03647 (9)          
  Cl2    0.14243 (4)     0.55912 (10)   0.06682 (3)     0.05302 (18)         
  Cl3    0.00058 (5)     0.38970 (10)   0.15353 (3)     0.05174 (18)         
  O2     0.11698 (14)    0.9762 (3)     0.13204 (7)     0.0528 (5)           
  N1     0.10788 (13)    0.7995 (3)     0.19965 (8)     0.0359 (4)           
  N5     0.13746 (13)    0.9069 (3)     0.28892 (8)     0.0403 (5)           
  H5     0.1385          0.8886         0.3225          0.048\*              
  N6     0.09525 (17)    0.6185 (3)     0.26931 (9)     0.0538 (6)           
  H6A    0.0802          0.5332         0.2463          0.065\*              
  H6B    0.0986          0.6023         0.3033          0.065\*              
  C2     0.12795 (15)    0.9609 (3)     0.18243 (9)     0.0383 (5)           
  C3     0.15860 (17)    1.0967 (3)     0.22184 (10)    0.0432 (6)           
  H3     0.1770          1.2029         0.2113          0.052\*              
  C4     0.16041 (15)    1.0686 (3)     0.27419 (10)    0.0381 (5)           
  C6     0.11331 (14)    0.7758 (4)     0.25216 (9)     0.0365 (5)           
  C7     0.1859 (2)      1.2017 (4)     0.31928 (12)    0.0556 (7)           
  H7A    0.1992          1.3112         0.3047          0.083\*              
  H7B    0.2319          1.1580         0.3465          0.083\*              
  H7C    0.1431          1.2213         0.3356          0.083\*              
  O2A    −0.08881 (13)   0.8086 (3)     0.12328 (7)     0.0480 (5)           
  N1A    −0.04596 (12)   0.7847 (3)     0.04894 (7)     0.0329 (4)           
  N5A    −0.12319 (13)   0.8922 (3)     −0.03495 (8)    0.0358 (4)           
  H5A    −0.1284         0.9100         −0.0692         0.043\*              
  N6A    0.00074 (14)    0.7722 (3)     −0.02733 (9)    0.0439 (5)           
  H6A1   0.0447          0.7261         −0.0080         0.053\*              
  H6A2   −0.0063         0.7913         −0.0617         0.053\*              
  C2A    −0.10327 (16)   0.8387 (3)     0.07295 (10)    0.0352 (5)           
  C3A    −0.17409 (16)   0.9202 (4)     0.04057 (10)    0.0416 (5)           
  H3A    −0.2138         0.9565         0.0562          0.050\*              
  C4A    −0.18262 (14)   0.9439 (3)     −0.01337 (10)   0.0382 (5)           
  C6A    −0.05619 (15)   0.8137 (3)     −0.00417 (9)    0.0334 (5)           
  C7A    −0.25489 (18)   1.0267 (4)     −0.05236 (12)   0.0544 (7)           
  H7A1   −0.2961         1.0418         −0.0343         0.082\*              
  H7A2   −0.2740         0.9512         −0.0836         0.082\*              
  H7A3   −0.2407         1.1401         −0.0640         0.082\*              
  ------ --------------- -------------- --------------- -------------------- --

Atomic displacement parameters (Å^2^) {#tablewrapadps}
=====================================

  ----- -------------- -------------- -------------- -------------- ------------- --------------
        *U*^11^        *U*^22^        *U*^33^        *U*^12^        *U*^13^       *U*^23^
  Cd1   0.03843 (13)   0.04544 (14)   0.02572 (12)   0.00425 (7)    0.00919 (8)   −0.00182 (6)
  Cl2   0.0401 (3)     0.0646 (4)     0.0606 (4)     −0.0029 (3)    0.0243 (3)    −0.0193 (3)
  Cl3   0.0707 (5)     0.0453 (3)     0.0463 (4)     −0.0026 (3)    0.0282 (4)    −0.0019 (3)
  O2    0.0827 (15)    0.0568 (11)    0.0220 (8)     −0.0044 (10)   0.0196 (9)    0.0058 (7)
  N1    0.0453 (12)    0.0419 (10)    0.0224 (9)     −0.0027 (9)    0.0125 (8)    0.0001 (7)
  N5    0.0474 (12)    0.0558 (12)    0.0186 (8)     −0.0015 (10)   0.0108 (8)    −0.0001 (8)
  N6    0.0727 (18)    0.0589 (13)    0.0322 (12)    −0.0167 (13)   0.0189 (12)   0.0060 (10)
  C2    0.0455 (13)    0.0467 (13)    0.0234 (10)    0.0014 (11)    0.0110 (10)   0.0034 (9)
  C3    0.0525 (16)    0.0434 (13)    0.0336 (12)    −0.0048 (12)   0.0121 (11)   0.0021 (10)
  C4    0.0347 (12)    0.0483 (13)    0.0298 (11)    0.0013 (10)    0.0066 (9)    −0.0026 (9)
  C6    0.0379 (12)    0.0479 (12)    0.0262 (11)    0.0005 (10)    0.0128 (9)    0.0057 (10)
  C7    0.0622 (19)    0.0615 (16)    0.0383 (14)    0.0043 (15)    0.0059 (13)   −0.0127 (13)
  O2A   0.0588 (12)    0.0672 (12)    0.0216 (8)     0.0185 (10)    0.0173 (8)    0.0067 (7)
  N1A   0.0368 (10)    0.0419 (10)    0.0218 (9)     0.0025 (8)     0.0112 (8)    0.0004 (7)
  N5A   0.0423 (11)    0.0450 (10)    0.0194 (8)     −0.0070 (9)    0.0076 (8)    0.0030 (8)
  N6A   0.0480 (12)    0.0592 (13)    0.0298 (10)    −0.0047 (11)   0.0199 (9)    −0.0062 (10)
  C2A   0.0417 (13)    0.0421 (12)    0.0239 (11)    0.0031 (9)     0.0127 (10)   0.0028 (8)
  C3A   0.0399 (13)    0.0533 (14)    0.0346 (12)    0.0079 (11)    0.0156 (10)   0.0093 (11)
  C4A   0.0364 (12)    0.0440 (12)    0.0318 (12)    −0.0039 (10)   0.0055 (10)   0.0080 (9)
  C6A   0.0402 (13)    0.0391 (11)    0.0222 (10)    −0.0098 (9)    0.0110 (9)    −0.0044 (8)
  C7A   0.0479 (16)    0.0656 (18)    0.0435 (15)    0.0020 (14)    0.0023 (13)   0.0191 (13)
  ----- -------------- -------------- -------------- -------------- ------------- --------------

Geometric parameters (Å, °) {#tablewrapgeomlong}
===========================

  --------------------- -------------- ----------------------- --------------
  Cd1---N1A             2.261 (2)      C7---H7A                0.9600
  Cd1---N1              2.286 (2)      C7---H7B                0.9600
  Cd1---Cl2             2.4674 (6)     C7---H7C                0.9600
  Cd1---Cl3             2.4893 (7)     O2A---C2A               1.255 (3)
  Cd1---O2              2.624 (2)      N1A---C6A               1.331 (3)
  Cd1---O2A             2.692 (2)      N1A---C2A               1.369 (3)
  O2---C2               1.248 (3)      N5A---C6A               1.348 (3)
  N1---C6               1.325 (3)      N5A---C4A               1.357 (3)
  N1---C2               1.372 (3)      N5A---H5A               0.8600
  N5---C6               1.346 (3)      N6A---C6A               1.324 (3)
  N5---C4               1.369 (3)      N6A---H6A1              0.8600
  N5---H5               0.8600         N6A---H6A2              0.8600
  N6---C6               1.332 (3)      C2A---C3A               1.419 (4)
  N6---H6A              0.8600         C3A---C4A               1.351 (3)
  N6---H6B              0.8600         C3A---H3A               0.9300
  C2---C3               1.429 (3)      C4A---C7A               1.505 (3)
  C3---C4               1.340 (3)      C7A---H7A1              0.9600
  C3---H3               0.9300         C7A---H7A2              0.9600
  C4---C7               1.496 (4)      C7A---H7A3              0.9600
                                                               
  Cl2---Cd1---Cl3       105.84 (3)     N1---C6---N5            121.5 (2)
  Cl2---Cd1---O2        91.30 (5)      N6---C6---N5            118.9 (2)
  Cl2---Cd1---O2A       151.90 (4)     C4---C7---H7A           109.5
  Cl2---Cd1---N1        115.69 (6)     C4---C7---H7B           109.5
  Cl2---Cd1---N1A       99.51 (5)      H7A---C7---H7B          109.5
  Cl3---Cd1---O2        152.05 (4)     C4---C7---H7C           109.5
  Cl3---Cd1---O2A       85.31 (5)      H7A---C7---H7C          109.5
  Cl3---Cd1---N1        99.07 (6)      H7B---C7---H7C          109.5
  Cl3---Cd1---N1A       111.44 (6)     C6A---N1A---C2A         119.7 (2)
  O2---Cd1---O2A        89.71 (7)      C6A---N1A---Cd1         136.08 (17)
  O2---Cd1---N1         53.14 (7)      C2A---N1A---Cd1         104.22 (14)
  O2---Cd1---N1A        86.54 (7)      C6A---N5A---C4A         121.7 (2)
  O2A---Cd1---N1        86.97 (7)      C6A---N5A---H5A         119.1
  O2A---Cd1---N1A       52.52 (6)      C4A---N5A---H5A         119.1
  N1---Cd1---N1A        124.44 (8)     C6A---N6A---H6A1        120.0
  C2---O2---Cd1         89.39 (15)     C6A---N6A---H6A2        120.0
  C6---N1---C2          119.2 (2)      H6A1---N6A---H6A2       120.0
  C6---N1---Cd1         137.93 (17)    O2A---C2A---N1A         115.9 (2)
  C2---N1---Cd1         101.61 (14)    O2A---C2A---C3A         124.5 (2)
  C6---N5---C4          121.6 (2)      N1A---C2A---C3A         119.6 (2)
  C6---N5---H5          119.2          C4A---C3A---C2A         118.7 (2)
  C4---N5---H5          119.2          C4A---C3A---H3A         120.7
  C6---N6---H6A         120.0          C2A---C3A---H3A         120.7
  C6---N6---H6B         120.0          C3A---C4A---N5A         119.5 (2)
  H6A---N6---H6B        120.0          C3A---C4A---C7A         124.1 (3)
  O2---C2---N1          115.5 (2)      N5A---C4A---C7A         116.4 (2)
  O2---C2---C3          125.1 (2)      N6A---C6A---N1A         120.5 (2)
  N1---C2---C3          119.4 (2)      N6A---C6A---N5A         118.7 (2)
  C4---C3---C2          119.0 (2)      N1A---C6A---N5A         120.8 (2)
  C4---C3---H3          120.5          C4A---C7A---H7A1        109.5
  C2---C3---H3          120.5          C4A---C7A---H7A2        109.5
  C3---C4---N5          119.0 (2)      H7A1---C7A---H7A2       109.5
  C3---C4---C7          125.1 (3)      C4A---C7A---H7A3        109.5
  N5---C4---C7          115.8 (2)      H7A1---C7A---H7A3       109.5
  N1---C6---N6          119.5 (2)      H7A2---C7A---H7A3       109.5
                                                               
  N1A---Cd1---O2---C2   135.12 (17)    Cd1---N1---C6---N5      −164.08 (19)
  N1---Cd1---O2---C2    −3.77 (15)     C4---N5---C6---N1       −2.5 (4)
  Cl2---Cd1---O2---C2   −125.43 (16)   C4---N5---C6---N6       176.9 (2)
  Cl3---Cd1---O2---C2   3.3 (2)        N1---Cd1---N1A---C6A    126.3 (2)
  N1A---Cd1---N1---C6   117.1 (3)      Cl2---Cd1---N1A---C6A   −4.0 (2)
  Cl2---Cd1---N1---C6   −119.4 (2)     Cl3---Cd1---N1A---C6A   −115.3 (2)
  Cl3---Cd1---N1---C6   −6.8 (3)       O2---Cd1---N1A---C6A    86.7 (2)
  O2---Cd1---N1---C6    169.8 (3)      N1---Cd1---N1A---C2A    −52.71 (18)
  N1A---Cd1---N1---C2   −49.21 (18)    Cl2---Cd1---N1A---C2A   176.92 (14)
  Cl2---Cd1---N1---C2   74.29 (16)     Cl3---Cd1---N1A---C2A   65.63 (15)
  Cl3---Cd1---N1---C2   −173.16 (14)   O2---Cd1---N1A---C2A    −92.33 (15)
  O2---Cd1---N1---C2    3.50 (14)      C6A---N1A---C2A---O2A   −179.1 (2)
  Cd1---O2---C2---N1    5.6 (2)        Cd1---N1A---C2A---O2A   0.1 (3)
  Cd1---O2---C2---C3    −174.0 (3)     C6A---N1A---C2A---C3A   1.9 (3)
  C6---N1---C2---O2     −176.1 (2)     Cd1---N1A---C2A---C3A   −178.86 (19)
  Cd1---N1---C2---O2    −6.5 (3)       O2A---C2A---C3A---C4A   −179.5 (3)
  C6---N1---C2---C3     3.6 (4)        N1A---C2A---C3A---C4A   −0.7 (4)
  Cd1---N1---C2---C3    173.1 (2)      C2A---C3A---C4A---N5A   −1.0 (4)
  O2---C2---C3---C4     173.8 (3)      C2A---C3A---C4A---C7A   179.4 (2)
  N1---C2---C3---C4     −5.8 (4)       C6A---N5A---C4A---C3A   1.5 (4)
  C2---C3---C4---N5     4.0 (4)        C6A---N5A---C4A---C7A   −178.9 (2)
  C2---C3---C4---C7     −176.0 (3)     C2A---N1A---C6A---N6A   175.9 (2)
  C6---N5---C4---C3     0.1 (4)        Cd1---N1A---C6A---N6A   −3.0 (4)
  C6---N5---C4---C7     −179.9 (2)     C2A---N1A---C6A---N5A   −1.5 (3)
  C2---N1---C6---N6     −178.8 (2)     Cd1---N1A---C6A---N5A   179.61 (17)
  Cd1---N1---C6---N6    16.5 (4)       C4A---N5A---C6A---N6A   −177.6 (2)
  C2---N1---C6---N5     0.5 (4)        C4A---N5A---C6A---N1A   −0.3 (3)
  --------------------- -------------- ----------------------- --------------

Hydrogen-bond geometry (Å, °) {#tablewraphbondslong}
=============================

  ----------------------- --------- --------- ----------- ---------------
  *D*---H···*A*           *D*---H   H···*A*   *D*···*A*   *D*---H···*A*
  N5---H5···O2A^i^        0.86      1.92      2.704 (3)   151
  N6---H6A···Cl3          0.86      2.62      3.417 (3)   155
  N6---H6B···O2A^i^       0.86      2.47      3.116 (3)   132
  N6---H6B···Cl3^i^       0.86      2.80      3.383 (2)   127
  N5A---H5A···O2^ii^      0.86      1.87      2.692 (2)   158
  N6A---H6A1···Cl2        0.86      2.51      3.336 (3)   161
  N6A---H6A2···Cl3^iii^   0.86      2.73      3.430 (2)   139
  ----------------------- --------- --------- ----------- ---------------

Symmetry codes: (i) −*x*, *y*, −*z*+1/2; (ii) −*x*, −*y*+2, −*z*; (iii) −*x*, −*y*+1, −*z*. 

###### Hydrogen-bond geometry (Å, °)

  *D*---H⋯*A*               *D*---H   H⋯*A*   *D*⋯*A*     *D*---H⋯*A*
  ------------------------- --------- ------- ----------- -------------
  N5---H5⋯O2*A*^i^          0.86      1.92    2.704 (3)   151
  N6---H6*A*⋯Cl3            0.86      2.62    3.417 (3)   155
  N6---H6*B*⋯O2*A*^i^       0.86      2.47    3.116 (3)   132
  N6---H6*B*⋯Cl3^i^         0.86      2.80    3.383 (2)   127
  N5*A*---H5*A*⋯O2^ii^      0.86      1.87    2.692 (2)   158
  N6*A*---H6*A*1⋯Cl2        0.86      2.51    3.336 (3)   161
  N6*A*---H6*A*2⋯Cl3^iii^   0.86      2.73    3.430 (2)   139

Symmetry codes: (i) ; (ii) ; (iii) .