Single-crystal-to-single-crystal structural transformations of two sandwich-like Cu(ii) pyrazolate complexes and their excellent catalytic performances in MMA polymerization.
Li, Hong-Xi; Ren, Zhi-Gang; Liu, Dong; Chen, Yang; Lang, Jian-Ping; Cheng, Zhen-Ping; Zhu, Xiu-Lin; Abrahams, Brendan F.; Chemical communications (Cambridge, England) 46 (2010) 8430–8432; doi:10.1039/c0cc03027a

data_7112933
_publ_section_title
;
 Single-crystal-to-single-crystal structural transformations of two
 sandwich-like Cu(ii) pyrazolate complexes and their excellent catalytic
 performances in MMA polymerization.
;
_journal_issue                   44
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              8430
_journal_page_last               8432
_journal_paper_doi               10.1039/c0cc03027a
_journal_volume                  46
_journal_year                    2010
_chemical_formula_moiety         'C46 H62 Cu7 N20 O26, 4(C2 H3 N)'
_chemical_formula_sum            'C54 H74 Cu7 N24 O26'
_chemical_formula_weight         1920.22
_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                100.86(3)
_cell_angle_beta                 93.47(3)
_cell_angle_gamma                104.97(3)
_cell_formula_units_Z            1
_cell_length_a                   11.638(2)
_cell_length_b                   13.075(3)
_cell_length_c                   13.262(3)
_cell_measurement_reflns_used    7802
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.5010
_cell_measurement_theta_min      3.1493
_cell_volume                     1901.9(8)
_computing_cell_refinement       'CrystalClear, Ver. 1.30 (Rigaku/MSC, 2001)'
_computing_data_collection       'CrystalClear, Ver. 1.30 (Rigaku/MSC, 2001)'
_computing_data_reduction
'CrystalStructure, Ver. 3.60 (Rigaku/MSC, 2004)'
_computing_molecular_graphics    'SHELXL-97 (Sheldrick, 1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device_type  'Rigaku Mercury'
_diffrn_measurement_method       \w
_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  0.0434
_diffrn_reflns_av_sigmaI/netI    0.0808
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            17561
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         3.15
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.011
_exptl_absorpt_correction_T_max  0.8242
_exptl_absorpt_correction_T_min  0.3783
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Jacobson, R. (1998) Private communication to Rigaku Corp.'
_exptl_crystal_colour            Blue
_exptl_crystal_density_diffrn    1.677
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             977
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.60
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.796
_refine_diff_density_min         -0.633
_refine_diff_density_rms         0.146
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.085
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     494
_refine_ls_number_reflns         8590
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.085
_refine_ls_R_factor_all          0.1042
_refine_ls_R_factor_gt           0.0638
_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^)+(0.0588P)^2^+1.9555P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1272
_refine_ls_wR_factor_ref         0.1481
_reflns_number_gt                5779
_reflns_number_total             8590
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0cc03027a.txt
_cod_data_source_block           4
_cod_original_cell_volume        1901.8(7)
_cod_database_code               7112933