Unexpectedly High Barriers to M–P Rotation in Tertiary Phobane Complexes: PhobPR Behavior That Is Commensurate withtBu2PR
Lister, Julia M.; Carreira, Monica; Haddow, Mairi F.; Hamilton, Alex; McMullin, Claire L.; Orpen, A. Guy; Pringle, Paul G.; Stennett, Tom E.; Organometallics 33 (2014) 702–; doi:10.1021/om400980e

data_4082504
_publ_section_title
;
 Unexpectedly High Barriers to M--P Rotation in Tertiary Phobane
 Complexes: PhobPR Behavior That Is Commensurate withtBu2PR
;
_journal_issue                   3
_journal_name_full               Organometallics
_journal_page_first              702
_journal_paper_doi               10.1021/om400980e
_journal_volume                  33
_journal_year                    2014
_chemical_formula_moiety         'C12 H23 P Se'
_chemical_formula_sum            'C12 H23 P Se'
_chemical_formula_weight         277.23
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                115.834(6)
_cell_angle_beta                 101.468(5)
_cell_angle_gamma                92.320(6)
_cell_formula_units_Z            2
_cell_length_a                   7.0652(10)
_cell_length_b                   9.8344(14)
_cell_length_c                   10.6283(16)
_cell_measurement_reflns_used    15610
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      35.948
_cell_measurement_theta_min      3.64
_cell_volume                     644.60(17)
_computing_cell_refinement       'Apex II (Bruker-AXS, 2007)'
_computing_data_collection       'Apex II (Bruker-AXS, 2007)'
_computing_data_reduction
; 
 SAINT v7.34A (Bruker-AXS, 2007) & XPREP v2005/4 (Bruker-AXS, 2005) 
;
_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      120(2)
_diffrn_detector_area_resol_mean 8.366
_diffrn_measured_fraction_theta_full 0.975
_diffrn_measured_fraction_theta_max 0.710
_diffrn_measurement_device_type  'Bruker-AXS Kappa'
_diffrn_measurement_method       '\w & \f 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  0.0291
_diffrn_reflns_av_sigmaI/netI    0.0222
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            18717
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         36.21
_diffrn_reflns_theta_min         3.65
_exptl_absorpt_coefficient_mu    3.001
_exptl_absorpt_correction_T_max  0.7471
_exptl_absorpt_correction_T_min  0.5054
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.428
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             288
_exptl_crystal_size_max          0.67
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.380
_refine_diff_density_min         -0.299
_refine_diff_density_rms         0.048
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.050
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     128
_refine_ls_number_reflns         4409
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.050
_refine_ls_R_factor_all          0.0161
_refine_ls_R_factor_gt           0.0151
_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^)+(0.0158P)^2^+0.1209P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0400
_refine_ls_wR_factor_ref         0.0402
_reflns_number_gt                4230
_reflns_number_total             4408
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om400980e_si_002.cif
_cod_data_source_block           s-PhobPSenBu
_cod_original_cell_volume        644.60(16)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4082504