The first observation of azo-hydrazone and cis-trans tautomerisms for disperse yellow dyes and their nickel(II) and copper(II) complexes.
You, Wei; Zhu, Hao-Yu; Huang, Wei; Hu, Bin; Fan, Ying; You, Xiao-Zeng; Dalton transactions (Cambridge, England : 2003) 39 (2010) 7876–7880; doi:10.1039/c0dt00101e

data_7025991
_publ_section_title
;
 The first observation of azo-hydrazone and cis-trans tautomerisms for
 disperse yellow dyes and their nickel(II) and copper(II) complexes.
;
_journal_issue                   34
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              7876
_journal_page_last               7880
_journal_paper_doi               10.1039/c0dt00101e
_journal_volume                  39
_journal_year                    2010
_chemical_formula_moiety         'C30 H22 Cl4 Cu N8 O4'
_chemical_formula_sum            'C30 H22 Cl4 Cu N8 O4'
_chemical_formula_weight         763.91
_chemical_name_systematic
;
?
;
_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                72.398(15)
_cell_angle_beta                 87.327(15)
_cell_angle_gamma                72.126(13)
_cell_formula_units_Z            1
_cell_length_a                   7.642(7)
_cell_length_b                   8.378(8)
_cell_length_c                   13.350(12)
_cell_measurement_reflns_used    945
_cell_measurement_temperature    291(2)
_cell_measurement_theta_max      22.713
_cell_measurement_theta_min      2.805
_cell_volume                     774.4(12)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (BRUKER 2000)'
_computing_data_reduction        'SAINT (BRUKER 2000)'
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      291(2)
_diffrn_measured_fraction_theta_full 0.979
_diffrn_measured_fraction_theta_max 0.979
_diffrn_measurement_device_type  'Bruker CCD area detector'
_diffrn_measurement_method       '\f and \w scans'
_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  0.0890
_diffrn_reflns_av_sigmaI/netI    0.1089
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            3838
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         2.67
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.102
_exptl_absorpt_correction_T_max  0.8977
_exptl_absorpt_correction_T_min  0.8977
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, Bruker(2000)'
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.638
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             387
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.080
_refine_diff_density_min         -1.697
_refine_diff_density_rms         0.144
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.003
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     216
_refine_ls_number_reflns         2661
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.003
_refine_ls_R_factor_all          0.1217
_refine_ls_R_factor_gt           0.0775
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1160P)^2^+3.9600P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1955
_refine_ls_wR_factor_ref         0.2541
_reflns_number_gt                1660
_reflns_number_total             2661
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0dt00101e.txt
_cod_data_source_block           4
_cod_database_code               7025991