Platinum(ii) alkyl complexes of chelating dibridgehead diphosphines P((CH2)n)3P (n = 14, 18, 22); facile cis/trans isomerizations interconverting gyroscope and parachute like adducts
Zhu, Yun; Ehnbom, Andreas; Fiedler, Tobias; Shu, Yi; Bhuvanesh, Nattamai; Hall, Michael B.; Gladysz, John A.; Dalton Transactions  (2021) –; doi:10.1039/D1DT02321G

data_7708169
_publ_section_title
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 Platinum(ii) alkyl complexes of chelating dibridgehead diphosphines
 P((CH2)n)3P (n = 14, 18, 22); facile cis/trans isomerizations
 interconverting gyroscope and parachute like adducts
;
_journal_name_full               'Dalton Transactions'
_journal_paper_doi               10.1039/D1DT02321G
_journal_year                    2021
_chemical_formula_moiety         'C43 H87 I P2 Pt'
_chemical_formula_sum            'C43 H87 I P2 Pt'
_chemical_formula_weight         988.05
_space_group_crystal_system      orthorhombic
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2021-03-16
_audit_creation_method
;
Olex2 1.3
(compiled 2020.11.12 svn.r5f609507 for OlexSys, GUI svn.r6272)
;
_audit_update_record
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2021-08-20 deposited with the CCDC.	2021-08-23 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   20.481(6)
_cell_length_b                   13.685(4)
_cell_length_c                   33.232(10)
_cell_measurement_reflns_used    991
_cell_measurement_temperature    110.0
_cell_measurement_theta_max      27.33
_cell_measurement_theta_min      2.77
_cell_volume                     9314(5)
_computing_cell_refinement       'SAINT v7.68A (Bruker, 2009)'
_computing_data_collection       'APEX-II (BRUKER-NONIUS, 2003)'
_computing_data_reduction        'SAINT v7.68A (Bruker, 2009)'
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL  (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      110.0
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'APEX II'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0463
_diffrn_reflns_av_unetI/netI     0.0255
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.994
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       43
_diffrn_reflns_limit_l_min       -43
_diffrn_reflns_number            97076
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.994
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.497
_diffrn_reflns_theta_min         2.336
_diffrn_source_current           40.0
_diffrn_source_power             1.6
_diffrn_source_voltage           40.0
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.770
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.4890
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2008/1 (Bruker,2008) was used for absorption correction.
wR2(int) was 0.0894 before and 0.0503 after correction.
The Ratio of minimum to maximum transmission is 0.6558.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            orange
_exptl_crystal_colour_primary    orange
_exptl_crystal_density_diffrn    1.409
_exptl_crystal_description       block
_exptl_crystal_F_000             4048
_exptl_crystal_size_max          0.56
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.12
_refine_diff_density_max         2.037
_refine_diff_density_min         -1.132
_refine_diff_density_rms         0.114
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.076
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     426
_refine_ls_number_reflns         10629
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.081
_refine_ls_R_factor_all          0.0493
_refine_ls_R_factor_gt           0.0353
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0369P)^2^+34.1551P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0837
_refine_ls_wR_factor_ref         0.0918
_reflns_Friedel_coverage         0.000
_reflns_number_gt                8621
_reflns_number_total             10629
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1dt02321g3.cif
_cod_data_source_block           pbca
_cod_database_code               7708169
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.660
_shelx_estimated_absorpt_t_min   0.227
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2. Restrained distances
 Pt1-C1 = Pt1-C1A
 2.1 with sigma of 0.01
 Pt1-I1 \\sim Pt1-I1A
 with sigma of 0.02
3. Uiso/Uaniso restraints and constraints
Uanis(C1) = Uanis(C1A) = Uanis(I1) = Uanis(I1A)
4. Others
 Sof(I1A)=Sof(C1A)=Sof(H1AC)=Sof(H1AB)=Sof(H1AA)=1-FVAR(1)
 Sof(I1)=Sof(C1)=Sof(H1A)=Sof(H1B)=Sof(H1C)=FVAR(1)
5.a Secondary CH2 refined with riding coordinates:
 C2(H2A,H2B), C3(H3A,H3B), C4(H4A,H4B), C5(H5A,H5B), C6(H6A,H6B), C7(H7A,H7B),
 C8(H8A,H8B), C9(H9A,H9B), C10(H10A,H10B), C11(H11A,H11B), C12(H12A,H12B),
 C13(H13A,H13B), C14(H14A,H14B), C15(H15A,H15B), C16(H16A,H16B), C17(H17A,H17B),
  C18(H18A,H18B), C19(H19A,H19B), C20(H20A,H20B), C21(H21A,H21B), C22(H22A,
 H22B), C23(H23A,H23B), C24(H24A,H24B), C25(H25A,H25B), C26(H26A,H26B),
 C27(H27A,H27B), C28(H28A,H28B), C29(H29A,H29B), C30(H30A,H30B), C31(H31A,H31B),
  C32(H32A,H32B), C33(H33A,H33B), C34(H34A,H34B), C35(H35A,H35B), C36(H36A,
 H36B), C37(H37A,H37B), C38(H38A,H38B), C39(H39A,H39B), C40(H40A,H40B),
 C41(H41A,H41B), C42(H42A,H42B), C43(H43A,H43B)
5.b Me refined with riding coordinates:
 C1(H1A,H1B,H1C)
5.c Idealised Me refined as rotating group:
 C1A(H1AC,H1AB,H1AA)
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_shelx_res_checksum              38469
_olex2_submission_special_instructions 'No special instructions were received'