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_4511167
_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            'C18 H46 As4 Cl6 O20 Sn6'
_chemical_formula_weight         1807.07
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yab'
_symmetry_space_group_name_H-M   'P 1 21/a 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                 101.282(14)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.314(3)
_cell_length_b                   22.966(8)
_cell_length_c                   11.919(4)
_cell_measurement_reflns_used    Total
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.47
_cell_measurement_theta_min      3.10
_cell_volume                     2500.3(15)
_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 0.998
_diffrn_measured_fraction_theta_max 0.996
_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     0.71069
_diffrn_reflns_av_R_equivalents  0.0444
_diffrn_reflns_av_sigmaI/netI    0.0396
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       29
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            23128
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         3.10
_exptl_absorpt_coefficient_mu    5.959
_exptl_absorpt_correction_T_max  0.236
_exptl_absorpt_correction_T_min  0.181
_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    2.400
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1696
_exptl_crystal_size_max          0.364
_exptl_crystal_size_mid          0.251
_exptl_crystal_size_min          0.244
_refine_diff_density_max         1.535
_refine_diff_density_min         -0.613
_refine_diff_density_rms         0.163
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.111
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     239
_refine_ls_number_reflns         5704
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.111
_refine_ls_R_factor_all          0.0649
_refine_ls_R_factor_gt           0.0536
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0360P)^2^+16.6033P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1172
_refine_ls_wR_factor_ref         0.1237
_reflns_number_gt                4720
_reflns_number_total             5704
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg8008877_si_002.cif
_cod_data_source_block           compound-4a
_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_sg_symbol_H-M      P21/a
_cod_database_code               4511167