Quaternary and quinary molecular solids based on structural inequivalence and combinatorial approaches: 2-nitroresorcinol and 4,6-dichlororesorcinol
Rajkumar, Madhu; Desiraju, Gautam R.; IUCrJ 8 (2021) 178–185; doi:10.1107/S2052252520016589

data_1560044
_publ_section_title
;
 Quaternary and quinary molecular solids based on structural inequivalence
 and combinatorial approaches: 2-nitroresorcinol and
 4,6-dichlororesorcinol
;
_journal_issue                   2
_journal_name_full               IUCrJ
_journal_page_first              178
_journal_page_last               185
_journal_paper_doi               10.1107/S2052252520016589
_journal_volume                  8
_journal_year                    2021
_chemical_formula_sum            'C12 H13 N3 O4'
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_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
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_diffrn_measurement_device_type  'Rigaku Mercury375R (2x2 bin mode)'
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_diffrn_source                   'Sealed Tube'
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_exptl_absorpt_correction_T_max  1.000
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_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            Brown
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_exptl_crystal_description       Block
_exptl_crystal_F_000             552
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_exptl_crystal_size_mid          0.210
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_refine_ls_extinction_coef       0.019(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
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_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^)+(0.1096P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1620
_refine_ls_wR_factor_ref         0.1989
_reflns_Friedel_coverage         0.000
_reflns_number_gt                859
_reflns_number_total             1441
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            yc5029.cif
_cod_data_source_block           4NRES-DMP
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_absorpt_correction_type' value 'Multi-scan' was
changed to 'multi-scan' in accordance with the
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/IUCr/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 7556 2019-12-06 15:28:31Z antanas 

 Adding full bibliography for 1560041--1560072.cif.
;
_cod_original_sg_symbol_H-M      'C 2/c'
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_shelx_estimated_absorpt_t_max   0.982
_shelx_res_checksum              87758
_shelx_hkl_checksum              54131