Synthesis and Characterization of Group 11 1,1,3,3-Tetraalkylguanidinate (TAG) Clusters: [M2(μ-TAG){μ-N(SiMe3)2}]2 (M = Cu, Ag, and Au)
Scott D. Bunge; Jennifer L. Steele; Inorganic Chemistry 48 (2009) 2701–2706; doi:10.1021/ic802291u

data_4301739
_publ_contact_author_address
;Kent State University
Chemistry Department
PO Box 5190
Kent, OH 44242, USA
;
_publ_contact_author_email       sbunge@kent.edu
_publ_contact_author_fax         '330 672 3816'
_publ_contact_author_name        'Scott D. Bunge'
_publ_contact_author_phone       '330 672 9445'
_publ_section_title
;
Synthesis and Characterization of Group 11 1,1,3,3-Tetraalkylguanidinate
(TAG) Clusters: [M2(\m-TAG){\m-N(SiMe3)2}]2 (M = Cu, Ag, and Au)
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              2701
_journal_page_last               2706
_journal_paper_doi               10.1021/ic802291u
_journal_volume                  48
_journal_year                    2009
_chemical_formula_sum            'C26 H68 Cu4 N8 Si4'
_chemical_formula_weight         859.40
_chemical_name_common            '[Cu2(DEDMG)2{N(TMS)2}2]2 (1)'
_space_group_IT_number           7
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P -2yc'
_symmetry_space_group_name_H-M   'P 1 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                 121.313(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   13.7108(19)
_cell_length_b                   8.9694(12)
_cell_length_c                   20.0612(18)
_cell_measurement_reflns_used    7328
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.68
_cell_measurement_theta_min      2.27
_cell_volume                     2107.7(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0264
_diffrn_reflns_av_sigmaI/netI    0.0221
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            20543
_diffrn_reflns_theta_full        27.99
_diffrn_reflns_theta_max         27.99
_diffrn_reflns_theta_min         1.74
_exptl_absorpt_coefficient_mu    2.131
_exptl_absorpt_correction_T_max  0.5275
_exptl_absorpt_correction_T_min  0.3649
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.354
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    .
_exptl_crystal_description       irregular
_exptl_crystal_F_000             904
_exptl_crystal_size_max          0.54
_exptl_crystal_size_mid          0.36
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.547
_refine_diff_density_min         -0.314
_refine_diff_density_rms         0.051
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.00(17)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.018
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     400
_refine_ls_number_reflns         5079
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.0183
_refine_ls_R_factor_gt           0.0178
_refine_ls_shift/su_max          0.026
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0316P)^2^+0.0824P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0468
_refine_ls_wR_factor_ref         0.0471
_reflns_number_gt                4985
_reflns_number_total             5079
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic802291u_si_002_1.cif
_cod_data_source_block           js002_0m
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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 'MULTI-SCAN' changed
to 'multi-scan' 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 
;
_cod_original_sg_symbol_H-M      'P c'
_cod_database_code               4301739