Phosphaalkene vs. phosphinidene: the nature of the P-C bond in carbonyl-decorated carbene > PPh adducts
Roberta R. Rodrigues; Christopher L. Dorsey; Chelsee A. Arceneaux; Todd W. Hudnall; Chem.Commun. 50 (2014) 162–; doi:10.1039/c3cc45134h

data_7110171
_publ_section_title
;
 Phosphaalkene vs. phosphinidene: the nature of the P-C bond in
 carbonyl-decorated carbene > PPh adducts
;
_journal_name_full               Chem.Commun.
_journal_page_first              162
_journal_paper_doi               10.1039/c3cc45134h
_journal_volume                  50
_journal_year                    2014
_chemical_formula_moiety         {(C9H11)2-C3N2O2-P(C6H5)}
_chemical_formula_sum            'C27 H27 N2 O2 P'
_chemical_formula_weight         442.48
_chemical_name_common            5-DAC=PPh
_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_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.1331(10)
_cell_length_b                   12.6193(16)
_cell_length_c                   23.637(3)
_cell_measurement_temperature    223(2)
_cell_volume                     2426.0(5)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2008)'
_computing_molecular_graphics    'XP SHELXTL/PC, Siemens Analytical'
_computing_structure_refinement  'XL SHELXTL/PC, Siemens Analytical'
_computing_structure_solution
;

SIR97 - Altomare A., Burla M.C., Camalli M., Cascarano G.L., Giacovazzo C., 
Guagliardi A., Moliterni A.G.G., Polidori G.,Spagna R.
;
_diffrn_ambient_temperature      223(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0990
_diffrn_reflns_av_sigmaI/netI    0.0842
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            17974
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.98
_exptl_absorpt_coefficient_mu    0.139
_exptl_absorpt_correction_type   none
_exptl_absorpt_process_details   none
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.211
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             936
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.34
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.232
_refine_diff_density_min         -0.188
_refine_diff_density_rms         0.050
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.04(18)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.008
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         4267
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.008
_refine_ls_R_factor_all          0.1125
_refine_ls_R_factor_gt           0.0631
_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^)+(0.0748P)^2^+0.2006P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1367
_refine_ls_wR_factor_ref         0.1603
_reflns_number_gt                2681
_reflns_number_total             4267
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3cc45134h.txt
_cod_data_source_block           2PPh
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7110171