Two tautomeric polymorphs of 2,6-dichloropurine
García-Rubiño, M. Eugenia; Choquesillo-Lazarte, Duane; Núñez, M. C.; Campos, Joaquín M.; Acta Crystallographica Section C 67 (2011) o484–o486; doi:10.1107/S0108270111043575

data_2018323
_publ_section_title
;
 Two tautomeric polymorphs of 2,6-dichloropurine
;
_journal_coeditor_code           GG3264
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_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o484
_journal_page_last               o486
_journal_paper_doi               10.1107/S0108270111043575
_journal_volume                  67
_journal_year                    2011
_chemical_formula_iupac          'C5 H2 Cl2 N4'
_chemical_formula_moiety         'C5 H2 Cl2 N4'
_chemical_formula_sum            'C5 H2 Cl2 N4'
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_chemical_name_systematic
;
2,6-dichloro-7<i>H</i>-purine
;
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'Flack (1983), <b>with how many Friedel pairs?</b>'
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'w = 1/[\s^2^(Fo^2^)+(0.0253P)^2^] where P=(Fo^2^+2Fc^2^)/3'
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