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_7112931
_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         'C54 H88 Cu7 N18 O32'
_chemical_formula_sum            'C54 H88 Cu7 N18 O32'
_chemical_formula_weight         1946.27
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 101.400(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   13.329(2)
_cell_length_b                   18.527(3)
_cell_length_c                   16.144(3)
_cell_measurement_reflns_used    7367
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      27.4816
_cell_measurement_theta_min      3.1173
_cell_volume                     3908.0(11)
_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      223(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_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     0.71075
_diffrn_reflns_av_R_equivalents  0.0345
_diffrn_reflns_av_sigmaI/netI    0.0523
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            15750
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.12
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.962
_exptl_absorpt_correction_T_max  0.8280
_exptl_absorpt_correction_T_min  0.5075
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Jacobson, R. (1998) Private communication to Rigaku Corp.'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.654
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1994
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.669
_refine_diff_density_min         -0.443
_refine_diff_density_rms         0.072
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     515
_refine_ls_number_reflns         6840
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0529
_refine_ls_R_factor_gt           0.0442
_refine_ls_shift/su_max          0.008
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0346P)^2^+3.8790P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0908
_refine_ls_wR_factor_ref         0.0950
_reflns_number_gt                6066
_reflns_number_total             6840
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0cc03027a.txt
_cod_data_source_block           1
_cod_original_cell_volume        3907.8(11)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7112931