Anticancer Agents. III. 4,4'-(Hexane-1,6-diyl)bis(piperazine-2,6-dione)
Liu, Q.; Zhang, S.-W.; Shao, M.-C.; Acta Crystallographica Section C 54 (1998) 439–440; doi:10.1107/S0108270197014844

data_2007084
_publ_section_title
;
 Anticancer Agents. III.
 4,4'-(Hexane-1,6-diyl)bis(piperazine-2,6-dione)
;
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              439
_journal_page_last               440
_journal_paper_doi               10.1107/S0108270197014844
_journal_volume                  54
_journal_year                    1998
_chemical_formula_moiety         'C14 H22 N4 O4'
_chemical_formula_sum            'C14 H22 N4 O4'
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_chemical_name_systematic
;
1,6-Bis(3,5-dioxopiperazine-1-yl)hexane
;
_space_group_IT_number           14
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_cell_length_b                   7.0690(10)
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_refine_ls_weighting_details     'w = 1/[\s^2^(F) + 0.001F^2^]'
_refine_ls_weighting_scheme      calc
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_cod_depositor_comments
;
The following automatic conversions were performed:

'_atom_site_thermal_displace_type' tag value 'Uij' was replaced with
'Uani' value 11 times.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'w = 1/[\s^2^(F) + 0.001F^2^]'
was changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to 'w = 1/[\s^2^(F) +
0.001F^2^]'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2007084