Turning colour on and off using molecular disorder and proton transfer in multi-component molecular complexes
Jones, Charlotte L.; Wilson, Chick C.; Thomas, Lynne H.; CrystEngComm 16 (2014) 5849–; doi:10.1039/c4ce00229f

data_7216532
_publ_section_title
;
 Turning colour on and off using molecular disorder and proton transfer in
 multi-component molecular complexes
;
_journal_issue                   26
_journal_name_full               CrystEngComm
_journal_page_first              5849
_journal_paper_doi               10.1039/c4ce00229f
_journal_volume                  16
_journal_year                    2014
_chemical_formula_sum            'C13 H10 I N3 O6'
_chemical_formula_weight         431.14
_space_group_IT_number           19
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.0536(7)
_cell_length_b                   10.5285(16)
_cell_length_c                   24.444(3)
_cell_measurement_temperature    100
_cell_volume                     1557.9(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0299
_diffrn_reflns_av_sigmaI/netI    0.0322
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            10999
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         3.16
_exptl_absorpt_coefficient_mu    2.090
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.8451
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'ABSCOR (Rigaku, 1995)'
_exptl_crystal_density_diffrn    1.838
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             840
_refine_diff_density_max         0.560
_refine_diff_density_min         -0.357
_refine_diff_density_rms         0.086
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.016(15)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.154
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     220
_refine_ls_number_reflns         3552
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.154
_refine_ls_R_factor_all          0.0249
_refine_ls_R_factor_gt           0.0211
_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^)+(0.0179P)^2^+0.2873P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0449
_refine_ls_wR_factor_ref         0.0505
_reflns_number_gt                3349
_reflns_number_total             3552
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c4ce00229f2.cif
_cod_data_source_block           4ia_35dnba_mecn_11_rtrpt
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' 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 2281 2013-09-26 08:29:07Z andrius 

 Adding full bibliography for 7216532--7216537.cif.
;
_cod_original_cell_volume        1558.0(4)
_cod_original_sg_symbol_H-M      P_21_21_21
_cod_database_code               7216532