5'-Aminohydroxymethylene-1',2'-dichloro-spiro[7<i>H</i>-pyrano[3,2-<i>c</i>;5,6-<i>c</i>']dichromene-7,4'-cyclohex-2'-ene]-3',6,6',8-tetraone dimethylformamide disolvate, a spiro compound from the reaction of 4-hydroxycoumarin with 2,3-dichloro-5,6-dicyanobenzoquinone
Zhang, Sheng-Ling; Huang, Zhi-Shu; Gu, Lian-Quan; Ng, Seik Weng; Acta Crystallographica Section E 60 (2004) o1911–o1913; doi:10.1107/S160053680402416X

data_2204532
_publ_section_title
;5'-Aminohydroxymethylene-1',2'-dichloro-spiro[7<i>H</i>-pyrano[3,2-<i>c</i>;5,6-<i>c</i>']dichromene-7,4'-cyclohex-2'-ene]-3',6,6',8-tetraone
 dimethylformamide disolvate, a spiro compound from the reaction of
 4-hydroxycoumarin with 2,3-dichloro-5,6-dicyanobenzoquinone
;
_journal_issue                   11
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1911
_journal_page_last               o1913
_journal_paper_doi               10.1107/S160053680402416X
_journal_volume                  60
_journal_year                    2004
_chemical_formula_iupac          'C25 H11 Cl2 N O8, 2C3 H7 N O'
_chemical_formula_moiety         'C25 H11 Cl2 N O8, 2C3 H7 N O'
_chemical_formula_sum            'C31 H25 Cl2 N3 O10'
_chemical_formula_weight         670.44
_chemical_name_systematic
;
5'-Aminohydroxymethylene-1',2'-dichloro-spiro[7H-
pyrano[3,2-c;5,6-c']dichromene-7,4'-cyclohex-2'-ene]-3',6,6',8-tetraone
dimethylformamide disolvate
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                112.263(2)
_cell_angle_beta                 95.223(2)
_cell_angle_gamma                91.974(2)
_cell_formula_units_Z            2
_cell_length_a                   11.5490(10)
_cell_length_b                   11.7200(10)
_cell_length_c                   12.4580(10)
_cell_measurement_reflns_used    905
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      25.7
_cell_measurement_theta_min      2.4
_cell_volume                     1549.7(2)
_computing_cell_refinement       'SAINT (Bruker, 2001)'
_computing_data_collection       'SMART (Bruker, 2001)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'ORTEPII (Johnson, 1976)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      295(2)
_diffrn_measured_fraction_theta_full 0.98
_diffrn_measured_fraction_theta_max 0.98
_diffrn_measurement_device_type  'Bruker SMART area-detector diffractometer'
_diffrn_measurement_method       '\f and \w scan'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0274
_diffrn_reflns_av_sigmaI/netI    0.0498
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            13301
_diffrn_reflns_theta_full        27.1
_diffrn_reflns_theta_max         27.1
_diffrn_reflns_theta_min         1.8
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.273
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Orange
_exptl_crystal_density_diffrn    1.437
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             692
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.32
_refine_diff_density_min         -0.25
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.00
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     479
_refine_ls_number_reflns         6683
_refine_ls_number_restraints     99
_refine_ls_restrained_S_all      1.02
_refine_ls_R_factor_all          0.098
_refine_ls_R_factor_gt           0.047
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         <0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0658P)^2^+0.1399P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.114
_refine_ls_wR_factor_ref         0.137
_reflns_number_gt                3733
_reflns_number_total             6683
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            lh6281.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'None' changed to
'none' 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:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'None' changed to
'none' 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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        1549.6(3)
_cod_database_code               2204532
_cod_database_fobs_code          2204532