Architectures varying from discrete molecular units to 2-dimensional coordination polymers and photoluminescence behavior of zinc and cadmium comprising an anionic zwitterion of rigid 4,5-dicarboxy-1,3-dimethyl-1H-imidazolium iodide
Tripathi, Sarita; Anantharaman, Ganapathi; CrystEngComm 17 (2015) 2754–; doi:10.1039/C4CE02215G

data_7219566
_publ_section_title
;
 Architectures varying from discrete molecular units to 2-dimensional
 coordination polymers and photoluminescence behavior of zinc and cadmium
 comprising an anionic zwitterion of rigid
 4,5-dicarboxy-1,3-dimethyl-1H-imidazolium iodide
;
_journal_issue                   13
_journal_name_full               CrystEngComm
_journal_page_first              2754
_journal_paper_doi               10.1039/C4CE02215G
_journal_volume                  17
_journal_year                    2015
_chemical_formula_moiety         'C7 H8 N2 O4'
_chemical_formula_sum            'C7 H8 N2 O4'
_chemical_formula_weight         184.15
_chemical_name_common            'LIGAND ZWITTER ION'
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2015-01-30 deposited with the CCDC.
2015-02-13 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 102.299(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.052(2)
_cell_length_b                   8.324(3)
_cell_length_c                   13.410(4)
_cell_measurement_reflns_used    1460
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.24
_cell_measurement_theta_min      2.90
_cell_volume                     769.1(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0368
_diffrn_reflns_av_sigmaI/netI    0.0457
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            4130
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.90
_exptl_absorpt_coefficient_mu    0.132
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    1.590
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             384
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.366
_refine_diff_density_min         -0.400
_refine_diff_density_rms         0.109
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.165
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     121
_refine_ls_number_reflns         1504
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.165
_refine_ls_R_factor_all          0.0602
_refine_ls_R_factor_gt           0.0486
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1012P)^2^+0.0585P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1357
_refine_ls_wR_factor_ref         0.1669
_reflns_number_gt                1287
_reflns_number_total             1504
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ce02215g1.cif
_cod_data_source_block           27febam
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'MONOCLINIC' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/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 3008 2015-01-20 13:52:24Z robertas 

 Adding full bibliography for 7219566--7219571.cif.
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7219566