Synthesis, characterisation and reactivity of the first diphosphaalkyneElectronic supplementary information (ESI) available: Synthesis of compounds 1, 2, 3 and 5. See http://www.rsc.org/suppdata/dt/b3/b309061b/
Brym, Markus; Jones, Cameron; Dalton Transactions  (2003) 3665–; doi:10.1039/b309061b

data_7013490
_publ_section_title
;
 Synthesis, characterisation and reactivity of the first
 diphosphaalkyneElectronic supplementary information (ESI) available:
 Synthesis of compounds 1, 2, 3 and 5. See
 http://www.rsc.org/suppdata/dt/b3/b309061b/
;
_journal_issue                   19
_journal_name_full               'Dalton Transactions'
_journal_page_first              3665
_journal_paper_doi               10.1039/b309061b
_journal_year                    2003
_chemical_formula_sum            'C22 H12 P2'
_chemical_formula_weight         338.26
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 101.23(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.1140(16)
_cell_length_b                   10.161(2)
_cell_length_c                   20.829(4)
_cell_measurement_temperature    150(2)
_cell_volume                     1684.4(6)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.965
_diffrn_measured_fraction_theta_max 0.965
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_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  0.0860
_diffrn_reflns_av_sigmaI/netI    0.0657
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            13682
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.92
_exptl_absorpt_coefficient_mu    0.257
_exptl_absorpt_correction_T_max  0.9748
_exptl_absorpt_correction_T_min  0.9505
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sortav (Blessing, 1995)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.334
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             696
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.444
_refine_diff_density_min         -0.377
_refine_diff_density_rms         0.065
_refine_ls_extinction_coef       0.009(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.057
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     218
_refine_ls_number_reflns         3732
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.057
_refine_ls_R_factor_all          0.0853
_refine_ls_R_factor_gt           0.0520
_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^)+(0.0639P)^2^+0.8720P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1294
_refine_ls_wR_factor_ref         0.1478
_reflns_number_gt                2626
_reflns_number_total             3732
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b309061b.txt
_cod_data_source_block           cmpd2
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7013490