Self-assembly synthesis of precursors to potential open framework alkali earth metal‒organic complexes
Hamdy, Louise B.; Raithby, Paul R.; Thomas, Lynne H.; Wilson, Chick C.; New Journal of Chemistry 38 (2014) 2135–; doi:10.1039/c3nj01218b

data_7054107
_publ_section_title
;
 Self-assembly synthesis of precursors to potential open framework alkali
 earth metal--organic complexes
;
_journal_issue                   5
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              2135
_journal_paper_doi               10.1039/c3nj01218b
_journal_volume                  38
_journal_year                    2014
_chemical_formula_moiety         'C12 H18 Mg N2 O8, 2(N O3)'
_chemical_formula_sum            'C12 H18 Mg N4 O14'
_chemical_formula_weight         466.61
_chemical_melting_point          359.5(15)
_chemical_name_systematic
;
picolinic acid magnesium nitrate tetrahydrate
;
_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   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2013
_cell_angle_alpha                80.832(7)
_cell_angle_beta                 83.325(6)
_cell_angle_gamma                77.664(5)
_cell_formula_units_Z            2
_cell_length_a                   6.9760(12)
_cell_length_b                   10.184(2)
_cell_length_c                   13.819(3)
_cell_measurement_reflns_used    11430
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.6
_cell_measurement_theta_min      3.0
_cell_volume                     943.4(3)
_computing_cell_refinement
; 
        CrystalClear-SM Expert 2.0 r12 (Rigaku, 2011) 
;
_computing_data_collection
; 
        CrystalClear-SM Expert 2.0 r12 (Rigaku, 2011) 
;
_computing_data_reduction
; 
        CrystalClear-SM Expert 2.0 r12 (Rigaku, 2011) 
;
_computing_molecular_graphics
;      
ORTEP-3: Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. 
;
_computing_publication_material
; 
enCIFer: Allen, F. H., Johnson, O., Shields, G. P., Smith, B. R.  
& Towler, M. (2004). J. Appl. Cryst. 37, 335-338. 
;
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 10
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type
; 
'Rigaku R-AXIS RAPID IP Image Plate diffractometer' 
;
_diffrn_measurement_method       'profile data from \\w-scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0463
_diffrn_reflns_av_unetI/netI     0.0367
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            22236
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.484
_diffrn_reflns_theta_min         2.997
_diffrn_source                   'Sealed tube'
_exptl_absorpt_coefficient_mu    0.180
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.939
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
CrystalClear-SM Expert 2.0 r12 (Rigaku, 2011) 
;
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.643
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Platelet
_exptl_crystal_F_000             484
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.100
_exptl_transmission_factor_max   1.000
_exptl_transmission_factor_min   0.939
_refine_diff_density_max         0.409
_refine_diff_density_min         -0.343
_refine_diff_density_rms         0.075
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.226
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     352
_refine_ls_number_reflns         4289
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.226
_refine_ls_R_factor_all          0.0583
_refine_ls_R_factor_gt           0.0341
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\\s^2^(Fo^2^)+(0.0464P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0804
_refine_ls_wR_factor_ref         0.0994
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3075
_reflns_number_total             4289
_reflns_threshold_expression     'I > 2\\s(I)'
_cod_data_source_file            c3nj01218b2.cif
_cod_data_source_block           2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '358-361' was changed to '359.5(15)'
- the average value was taken and precision was
estimated.

'_space_group_crystal_system' value 'Triclinic' changed
to 'triclinic' according to
/usr/data/users/saulius/crontab/automatic-downloads/current/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 

The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'multi-scans' was replaced
with the value 'multi-scan' as specified in the replacement file
'src/cod-tools/trunk/data/replacement-values/replacement_values.lst'.

Automatic conversion script
Id: cif_fix_values 5376 2017-05-30 11:51:03Z andrius 
;
_cod_database_code               7054107
_shelx_estimated_absorpt_t_min   0.956
_shelx_estimated_absorpt_t_max   0.982
_shelxl_version_number           2013-4
_shelx_res_checksum              69137