Tin Alkylarsonate Clusters: C−H···X (X = Cl, O, and π) Interaction-Mediated Supramolecular Formation
Xie, Yun-Peng; Yang, Jin; Ma, Jian-Fang; Ma, Ji-Cheng; Zhang, Lai-Ping; Jia, Zhi-Fang; Su, Zhong-Min; Crystal Growth & Design 9 (2009) 3881–; doi:10.1021/cg8008877

data_4511164
_publ_section_title
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 Tin Alkylarsonate Clusters: C&#x2212;H&#x00B7;&#x00B7;&#x00B7;X (X = Cl,
 O, and \p) Interaction-Mediated Supramolecular Formation
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_journal_issue                   9
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              3881
_journal_paper_doi               10.1021/cg8008877
_journal_volume                  9
_journal_year                    2009
_chemical_formula_sum            'C28 H66 As4 Cl6 O20 Sn6'
_chemical_formula_weight         1947.33
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           12
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2y'
_symmetry_space_group_name_H-M   'C 1 2/m 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                 106.224(18)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   16.347(10)
_cell_length_b                   18.436(10)
_cell_length_c                   10.075(9)
_cell_measurement_reflns_used    Total
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.98
_cell_volume                     2915(4)
_computing_cell_refinement       PROCESS-AUTO
_computing_data_collection       PROCESS-AUTO
_computing_data_reduction        PROCESS-AUTO
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 10.0
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID'
_diffrn_measurement_method       '\w scan'
_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  0.0532
_diffrn_reflns_av_sigmaI/netI    0.0517
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            13210
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.98
_exptl_absorpt_coefficient_mu    5.119
_exptl_absorpt_correction_T_max  0.379
_exptl_absorpt_correction_T_min  0.351
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Higashi,T (1995) Program for absorption correction. 
Rigaku Corporation, Tokyo, Japan.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.218
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1856
_exptl_crystal_size_max          0.213
_exptl_crystal_size_mid          0.197
_exptl_crystal_size_min          0.190
_refine_diff_density_max         0.941
_refine_diff_density_min         -0.930
_refine_diff_density_rms         0.125
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.065
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     149
_refine_ls_number_reflns         3414
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.072
_refine_ls_R_factor_all          0.1543
_refine_ls_R_factor_gt           0.0738
_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^)+(0.0784P)^2^+16.2025P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1712
_refine_ls_wR_factor_ref         0.2060
_reflns_number_gt                1603
_reflns_number_total             3414
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg8008877_si_002.cif
_cod_data_source_block           compound-1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_cell_volume        2915(3)
_cod_original_sg_symbol_H-M      C2/m
_cod_database_code               4511164