Tuning the potential of redox-active diphosphine ligands based on the alkyne complexes [Tp*W(CO)L{η<sup>2</sup>-C<sub>2</sub>(PPh<sub>2</sub>)<sub>2</sub>}].
Ludwig, Stephan; Hamann, Friederike M.; Helmdach, Kai; Villinger, Alexander; Seidel, Wolfram W.; Dalton transactions (Cambridge, England : 2003) 52 (2023) 326–337; doi:10.1039/d2dt02794a

data_7711903
_publ_section_title
;
 Tuning the potential of redox-active diphosphine ligands based on the
 alkyne complexes
 [Tp*W(CO)L{&#x3b7;<sup>2</sup>-C<sub>2</sub>(PPh<sub>2</sub>)<sub>2</sub>}].
;
_journal_issue                   2
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              326
_journal_page_last               337
_journal_paper_doi               10.1039/d2dt02794a
_journal_volume                  52
_journal_year                    2023
_chemical_formula_moiety         'C45 H48 B Br N6 O P2 W, C5 H12'
_chemical_formula_sum            'C50 H60 B Br N6 O P2 W'
_chemical_formula_weight         1097.55
_chemical_name_systematic
\h2-{Bis(diphenylphosphanyl)ethyne}-bromido-carbonyl-hydrido{tris(3,4,5-trimethylpyrazolyl)borato}-tungsten(II)
_chemical_properties_physical    Air-sensitive
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2022-11-24 deposited with the CCDC.	2022-12-12 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 99.1660(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.1304(4)
_cell_length_b                   19.4822(6)
_cell_length_c                   19.7195(6)
_cell_measurement_reflns_used    9842
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      32.55
_cell_measurement_theta_min      2.63
_cell_volume                     4980.0(3)
_computing_cell_refinement       'Bruker Apex V7.51A'
_computing_data_collection       'Bruker Apex V7.51A'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'ORTEP-3v2.01 (Farrugia, 1997)'
_computing_publication_material  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      123(2)
_diffrn_detector_area_resol_mean 10.4167
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker D8 QUEST diffractometer'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0328
_diffrn_reflns_av_unetI/netI     0.0162
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       29
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            218734
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         32.500
_diffrn_reflns_theta_min         2.625
_diffrn_source                   'microfocus sealed tube'
_exptl_absorpt_coefficient_mu    3.228
_exptl_absorpt_correction_T_max  0.7464
_exptl_absorpt_correction_T_min  0.6136
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS-2016/2; Sheldrick, 2015)'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.464
_exptl_crystal_description       block
_exptl_crystal_F_000             2216
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: dichloromethane / n-pentane'
_exptl_crystal_size_max          0.260
_exptl_crystal_size_mid          0.220
_exptl_crystal_size_min          0.180
_platon_squeeze_details
;
The unit cell contains about four n-pentane molecules which have been treated 
as a diffuse contribution to the overall scattering without specific atom 
positions by SQUEEZE/PLATON.
;
_refine_diff_density_max         0.487
_refine_diff_density_min         -0.932
_refine_diff_density_rms         0.080
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.079
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     553
_refine_ls_number_reflns         18022
_refine_ls_number_restraints     40
_refine_ls_restrained_S_all      1.079
_refine_ls_R_factor_all          0.0246
_refine_ls_R_factor_gt           0.0189
_refine_ls_shift/su_max          0.010
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0185P)^2^+2.6054P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0416
_refine_ls_wR_factor_ref         0.0434
_reflns_Friedel_coverage         0.000
_reflns_number_gt                16095
_reflns_number_total             18022
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2dt02794a2.cif
_cod_data_source_block           is_sl287
_cod_depositor_comments
'Adding full bibliography for 7711895--7711909.cif.'
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7711903
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.487
_shelx_estimated_absorpt_t_max   0.594
_platon_squeeze_void_probe_radius 1.20
_shelx_res_checksum              13948
_shelx_fab_checksum              69595