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_1560041
_publ_section_title
;
 Quaternary and quinary molecular solids based on structural inequivalence
 and combinatorial approaches: 2-nitroresorcinol and
 4,6-dichlororesorcinol
;
_journal_coeditor_code           YC5029
_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            'C20 H22 N4 O8'
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_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            Yellow
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_exptl_crystal_description       Block
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_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   -0.6(15)
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_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0388P)^2^+0.8048P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1004
_refine_ls_wR_factor_ref         0.1272
_reflns_Friedel_coverage         1.000
_reflns_Friedel_fraction_full    0.998
_reflns_Friedel_fraction_max     0.997
_reflns_number_gt                7362
_reflns_number_total             9240
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            yc5029.cif
_cod_data_source_block           1NRES-TMP
_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_database_code               1560041
_shelx_estimated_absorpt_t_min   0.978
_shelx_estimated_absorpt_t_max   0.978
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_shelx_res_checksum              67010
_shelx_hkl_checksum              44811