Polysubstituted Pyridazinones from Sequential Nucleophilic Substitution Reactions of Tetrafluoropyridazine
Graham Pattison; Graham Sandford; Dmitry S. Yufit; Judith A. K. Howard; John A. Christopher; David D. Miller; Journal of Organic Chemistry 74 (2009) 5533–5540; doi:10.1021/jo9006943

data_4024673
_publ_contact_author_address
;
Department of Chemistry
University of Durham
South Rd.
Durham
DH1 3LE
UK
;
_publ_contact_author_email       d.s.yufit@durham.ac.uk
_publ_contact_author_fax         '0191 384 4737'
_publ_contact_author_name        'Dmitry Yufit'
_publ_contact_author_phone       '0191 334 2004'
_publ_section_title
;
Polysubstituted Pyridazinones from Sequential Nucleophilic Substitution
Reactions of Tetrafluoropyridazine
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              5533
_journal_page_last               5540
_journal_paper_doi               10.1021/jo9006943
_journal_volume                  74
_journal_year                    2009
_chemical_formula_moiety         'C4 H F3 N2 O'
_chemical_formula_sum            'C4 H F3 N2 O'
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_chemical_melting_point          130.0(10)
_chemical_name_systematic
; 
 4,5,6-trifluoropyridazin-3(2H)-one 
;
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_audit_creation_method
;
manual editing of the CIF file 
created by SHELXTL Ver. 6.10
and processed with modiCIfer-09152005. 
;
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_diffrn_measured_fraction_theta_max 0.997
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_diffrn_reflns_theta_max         29.49
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_cod_data_source_file            jo9006943_si_002.cif
_cod_data_source_block           1_s281
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_chemical_melting_point' value '129-131' was changed to '130.0(10)'
- the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_original_sg_symbol_Hall     '-P 2ybc     '
_cod_original_sg_symbol_H-M      'P 1 21/c 1  '
_cod_database_code               4024673