First synthesis and characterization of isolable thioselenenic acid, triptycene-9-thioselenenic acid
Ishii, Akihiko; Takahashi, Takeshi; Tawata, Akira; Furukawa, Aki; Oshida, Hideaki; Nakayama, Juzo; Chemical Communications (Cambridge, United Kingdom)  (2002) 2810–2811; doi:10.1039/b207810d

data_7114416
_publ_section_title
;
 First synthesis and characterization of isolable thioselenenic acid,
 triptycene-9-thioselenenic acid
;
_journal_coden_ASTM              CHCOFS
_journal_issue                   23
_journal_name_full
'Chemical Communications (Cambridge, United Kingdom)'
_journal_page_first              2810
_journal_page_last               2811
_journal_paper_doi               10.1039/b207810d
_journal_year                    2002
_chemical_compound_source        'Local laboratory'
_chemical_formula_moiety         'C38 H28 S Se Sn '
_chemical_formula_sum            'C38 H28 S Se Sn'
_chemical_formula_weight         714.356
_chemical_name_systematic
;
Trip-Se-S-SnPh3 (Trip = 9-triptycyl)
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_primary     vecmap
_atom_sites_solution_secondary   difmap
_audit_creation_method           maXus
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.4730(4)
_cell_length_b                   15.4100(6)
_cell_length_c                   17.6340(6)
_cell_measurement_temperature    298
_cell_volume                     3117.67(19)
_computing_cell_refinement       'HKL Scalepack'
_computing_data_collection       'DIP Image plate'
_computing_data_reduction        'maXus (Mackay et al., 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'DIRDIF (Buerskens et al., 1992)'
_diffrn_measured_fraction_theta_full 0.977
_diffrn_measured_fraction_theta_max 0.977
_diffrn_measurement_device       'DIP Image plate'
_diffrn_measurement_method       IP
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength_id  all
_diffrn_reflns_av_R_equivalents  0.054
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            20437
_diffrn_reflns_theta_full        27.08
_diffrn_reflns_theta_max         27.08
_diffrn_reflns_theta_min         1.15
_exptl_absorpt_coefficient_mu    2.079
_exptl_absorpt_correction_T_max  0.785
_exptl_absorpt_correction_T_min  0.702
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
multi-scan from symmetry-related measurements
Sortav (Blessing 1995)
;
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.522
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Cube
_refine_diff_density_max         0.435
_refine_diff_density_min         -0.687
_refine_diff_density_rms         0.081
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.084(14)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    refxyz
_refine_ls_matrix_type           full
_refine_ls_number_parameters     370
_refine_ls_number_reflns         6631
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.0813
_refine_ls_R_factor_gt           0.0492
_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^)+(0.0347P)^2^+2.5037P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0919
_refine_ls_wR_factor_ref         0.1027
_reflns_number_gt                4849
_reflns_number_total             6631
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b207810d.txt
_cod_data_source_block           Compound_7
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/usr/data/users/saulius/automatic-downloads/retrospective/RSC/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        3117.7(2)
_cod_original_sg_symbol_H-M      'P 21 21 21    '
_cod_original_formula_sum        'C38 H28 S Se Sn '
_cod_database_code               7114416