Geometrically enforced donor-facilitated dehydrocoupling leading to an isolable arsanylidine-phosphorane.
Chalmers, Brian A.; Bühl, Michael; Athukorala Arachchige, Kasun S.; Slawin, Alexandra M. Z.; Kilian, Petr; Journal of the American Chemical Society 136 (2014) 6247–6250; doi:10.1021/ja502625z

data_4121710
_publ_section_title
;
 Geometrically enforced donor-facilitated dehydrocoupling leading to an
 isolable arsanylidine-phosphorane.
;
_journal_issue                   17
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              6247
_journal_page_last               6250
_journal_paper_doi               10.1021/ja502625z
_journal_volume                  136
_journal_year                    2014
_chemical_formula_moiety         'C18 H22 As Cl2 P'
_chemical_formula_sum            'C18 H22 As Cl2 P'
_chemical_formula_weight         415.15
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 108.209(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.556(4)
_cell_length_b                   11.052(3)
_cell_length_c                   14.829(5)
_cell_measurement_reflns_used    6641
_cell_measurement_temperature    93(2)
_cell_measurement_theta_max      28.8
_cell_measurement_theta_min      1.9
_cell_volume                     1799.1(10)
_computing_cell_refinement       'CrystalClear-SM Expert 2.0 (Rigaku, 2010)'
_computing_data_collection       'CrystalClear-SM Expert 2.0 (Rigaku, 2010)'
_computing_data_reduction        'CrystalClear-SM Expert 2.0 (Rigaku, 2010)'
_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      93(2)
_diffrn_detector_area_resol_mean 14.7059
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  CCD
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  confocal
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0317
_diffrn_reflns_av_sigmaI/netI    0.0326
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            10821
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.33
_diffrn_reflns_theta_min         1.86
_exptl_absorpt_coefficient_mu    2.269
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.807
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.533
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             848
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.334
_refine_diff_density_min         -0.399
_refine_diff_density_rms         0.062
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     203
_refine_ls_number_reflns         3253
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.042
_refine_ls_R_factor_all          0.0268
_refine_ls_R_factor_gt           0.0241
_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^)+(0.0295P)^2^+0.2793P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0569
_refine_ls_wR_factor_ref         0.0587
_reflns_number_gt                3000
_reflns_number_total             3253
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja502625z_si_001.cif
_cod_data_source_block           2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/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 

 Adding full bibliography for 4121710--4121714.cif.
;
_cod_original_cell_volume        1799.0(9)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4121710