Isoskeletal Schiff base polynuclear coordination clusters: synthetic and theoretical aspects
Griffiths, Kieran; Dokorou, Vassiliki N.; Spencer, John; Abdul-Sada, Alaa; Vargas, Alfredo; Kostakis, George E.; CrystEngComm 18 (2016) 704–; doi:10.1039/C5CE02109J

data_7223516
_publ_section_title
;
 Isoskeletal Schiff base polynuclear coordination clusters: synthetic and
 theoretical aspects
;
_journal_issue                   5
_journal_name_full               CrystEngComm
_journal_page_first              704
_journal_paper_doi               10.1039/C5CE02109J
_journal_volume                  18
_journal_year                    2016
_chemical_formula_moiety         'C20 H16 Br N O3, C H4 O'
_chemical_formula_sum            'C21 H20 Br N O4'
_chemical_formula_weight         430.29
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     iterative
_atom_sites_solution_secondary   difmap
_audit_creation_date             2014-06-25
_audit_creation_method
;
Olex2 1.2
(compiled 2013.09.17 svn.r2790 for OlexSys, GUI svn.r4601)
;
_audit_update_record
;
2015-11-15 deposited with the CCDC.
2015-12-17 downloaded from the CCDC.
;
_cell_angle_alpha                84.747(4)
_cell_angle_beta                 84.775(4)
_cell_angle_gamma                82.090(4)
_cell_formula_units_Z            2
_cell_length_a                   7.5662(4)
_cell_length_b                   8.5456(4)
_cell_length_c                   14.8304(8)
_cell_measurement_reflns_used    5562
_cell_measurement_temperature    173
_cell_measurement_theta_max      28.4480
_cell_measurement_theta_min      3.1630
_cell_volume                     942.79(8)
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.33 (release 27-03-2014 CrysAlis171 .NET)
(compiled Mar 27 2014,17:12:48)
;
_computing_data_collection
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.33 (release 27-03-2014 CrysAlis171 .NET)
(compiled Mar 27 2014,17:12:48)
;
_computing_data_reduction
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.33 (release 27-03-2014 CrysAlis171 .NET)
(compiled Mar 27 2014,17:12:48)
;
_computing_molecular_graphics
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_publication_material
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_structure_refinement
;
SHELX, G.M. Sheldrick, Acta Cryst.
(2008). A64, 112-122
;
_computing_structure_solution    'SUPERFLIP, J. Appl. Cryst. (2007) 40, 786-790'
_diffrn_ambient_temperature      173
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 16.1033
_diffrn_detector_type            Eos
_diffrn_measured_fraction_theta_full 0.9995
_diffrn_measured_fraction_theta_max 0.8628
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'Xcalibur, Eos, Gemini ultra'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_UB_11      0.0526163000
_diffrn_orient_matrix_UB_12      -0.0021442000
_diffrn_orient_matrix_UB_13      -0.0420795000
_diffrn_orient_matrix_UB_21      -0.0236143000
_diffrn_orient_matrix_UB_22      -0.0759093000
_diffrn_orient_matrix_UB_23      -0.0053894000
_diffrn_orient_matrix_UB_31      -0.0754245000
_diffrn_orient_matrix_UB_32      0.0360659000
_diffrn_orient_matrix_UB_33      -0.0228419000
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0562
_diffrn_reflns_av_unetI/netI     0.0474
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            21895
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         29.13
_diffrn_reflns_theta_min         2.68
_diffrn_source                   'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    2.207
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.45375
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.33 (release 27-03-2014 CrysAlis171 .NET)
(compiled Mar 27 2014,17:12:48)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            orange
_exptl_crystal_colour_primary    orange
_exptl_crystal_density_diffrn    1.516
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             440
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.397
_refine_diff_density_min         -0.503
_refine_diff_density_rms         0.082
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.049
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     253
_refine_ls_number_reflns         4630
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.049
_refine_ls_R_factor_all          0.0506
_refine_ls_R_factor_gt           0.0373
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0264P)^2^+0.4331P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0719
_refine_ls_wR_factor_ref         0.0768
_reflns_number_gt                3890
_reflns_number_total             4630
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5ce02109j2.cif
_cod_data_source_block           H2L19_CCDC_1406219
_cod_depositor_comments
'Adding full bibliography for 7223506--7223525.cif.'
_cod_original_cell_volume        942.80(8)
_cod_database_code               7223516
_chemical_oxdiff_formula         C52H92Si4Ti2Se2
_reflns_odcompleteness_completeness 99.95
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     26.32
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All N(H) groups
 At 1.5 times of:
  All C(H,H,H) groups, All O(H) groups
2. Restrained distances
 H2-O2
 0.88 with sigma of 0.02
 H2-N1
 2.2 with sigma of 0.02
3. Others
 Sof(H2)=1-FVAR(1)
 Sof(H1)=FVAR(1)
4.a Aromatic/amide H refined with riding coordinates:
 N1(H1), C17(H17), C3(H3A), C16(H16), C13(H13), C8(H8), C18(H18), C12(H12),
 C20(H20), C5(H5), C19(H19), C10(H10)
4.b Idealised Me refined as rotating group:
 C21(H21A,H21B,H21C), C1(H1A,H1B,H1C)
4.c Idealised tetrahedral OH refined as rotating group:
 O4(H4), O3(H3)
;