Co(ii) and Cr(iii) complexes of formate‒formamide mixed ligands: synthesis, structures, single crystal-to-single crystal transformation and magnetic behaviour
Sengupta, Oindrila; Song, You; Mukherjee, Partha Sarathi; Dalton Transactions  (2009) 10343–10352; doi:10.1039/b916878h

data_7002859
_publ_section_title
;
 Co(ii) and Cr(iii) complexes of formate--formamide mixed ligands:
 synthesis, structures, single crystal-to-single crystal transformation
 and magnetic behaviour
;
_journal_issue                   46
_journal_name_full               'Dalton Transactions'
_journal_page_first              10343
_journal_page_last               10352
_journal_paper_doi               10.1039/b916878h
_journal_year                    2009
_chemical_formula_moiety         'C4 H7 Co N2 O6'
_chemical_formula_sum            'C4 H7 Co N2 O6'
_chemical_formula_weight         238.05
_chemical_name_systematic
;
?
;
_space_group_IT_number           52
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2a 2bc'
_symmetry_space_group_name_H-M   'P n n a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.6935(2)
_cell_length_b                   11.6497(3)
_cell_length_c                   8.3121(2)
_cell_measurement_reflns_used    2046
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      30.51
_cell_measurement_theta_min      2.45
_cell_volume                     841.82(4)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'ORTEP-3 for Windows (Farrugia, 1999)'
_computing_publication_material  WinGX
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0135
_diffrn_reflns_av_sigmaI/netI    0.0145
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            3040
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.01
_exptl_absorpt_coefficient_mu    2.041
_exptl_absorpt_correction_T_max  0.7102
_exptl_absorpt_correction_T_min  0.6624
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            pink
_exptl_crystal_density_diffrn    1.878
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'rectangular block'
_exptl_crystal_F_000             480
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.862
_refine_diff_density_min         -0.820
_refine_diff_density_rms         0.122
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.170
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     61
_refine_ls_number_reflns         958
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.170
_refine_ls_R_factor_all          0.0487
_refine_ls_R_factor_gt           0.0441
_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^)+(0.0680P)^2^+2.3070P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1345
_refine_ls_wR_factor_ref         0.1380
_reflns_number_gt                846
_reflns_number_total             958
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b916878h.txt
_cod_data_source_block           1a_m
_cod_original_sg_symbol_H-M      pnna
_cod_database_code               7002859