Functional small-molecules & polymers containing P[double bond, length as m-dash]C and As[double bond, length as m-dash]C bonds as hybrid π-conjugated materials.
Morales Salazar, Daniel; Mijangos, Edgar; Pullen, Sonja; Gao, Ming; Orthaber, Andreas; Chemical communications (Cambridge, England) 53 (2017) 1120–1123; doi:10.1039/c6cc08736a

data_7119217
_publ_section_title
;
 Functional small-molecules &amp; polymers containing P[double bond,
 length as m-dash]C and As[double bond, length as m-dash]C bonds as hybrid
 \p-conjugated materials.
;
_journal_issue                   6
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              1120
_journal_page_last               1123
_journal_paper_doi               10.1039/c6cc08736a
_journal_volume                  53
_journal_year                    2017
_chemical_formula_sum            'C31 H35 As Br2'
_chemical_formula_weight         642.33
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2015-10-17 deposited with the CCDC.
2016-12-22 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 105.189(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.1345(5)
_cell_length_b                   23.5740(11)
_cell_length_c                   12.0357(6)
_cell_measurement_temperature    100(2)
_cell_volume                     2775.0(2)
_computing_cell_refinement       'SAINT V7.68A(Bruker AXS, 2012)'
_computing_data_collection       'APEX2  (Bruker AXS, 2012)'
_computing_data_reduction        'SAINT V7.68A(Bruker AXS, 2012)'
_computing_molecular_graphics    ' ORTEP for Windows (Farugia, 1997)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.976
_diffrn_measurement_device_type  'BrukerAPEX II with CCD'
_diffrn_measurement_method       '\w 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  0.0594
_diffrn_reflns_av_unetI/netI     0.0717
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.976
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -31
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            24799
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.976
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.585
_diffrn_reflns_theta_min         1.728
_exptl_absorpt_coefficient_mu    4.122
_exptl_absorpt_correction_T_max  0.7457
_exptl_absorpt_correction_T_min  0.4146
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs (Sheldrick, 1996)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.537
_exptl_crystal_description       block
_exptl_crystal_F_000             1296
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.571
_refine_diff_density_min         -0.596
_refine_diff_density_rms         0.112
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     316
_refine_ls_number_reflns         6931
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0772
_refine_ls_R_factor_gt           0.0423
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0317P)^2^+1.6248P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0793
_refine_ls_wR_factor_ref         0.0875
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4876
_reflns_number_total             6931
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6cc08736a2.cif
_cod_data_source_block           shelx
_cod_depositor_comments
'Adding full bibliography for 7119217--7119220.cif.'
_cod_database_code               7119217
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              45893