Stannylenes based on pyrrole-phosphane and dipyrromethane-diphosphane scaffolds: syntheses and behavior as precursors to PSnP pincer palladium(II), palladium(0) and gold(I) complexes.
Cabeza, Javier A.; Fernández, Israel; García-Álvarez, Pablo; García-Soriano, Rubén; Laglera-Gándara, Carlos J; Toral, Rubén; Dalton transactions (Cambridge, England : 2003) 50 (2021) 16122–16132; doi:10.1039/d1dt02967c

data_7708852
_publ_section_title
;
 Stannylenes based on pyrrole-phosphane and dipyrromethane-diphosphane
 scaffolds: syntheses and behavior as precursors to PSnP pincer
 palladium(II), palladium(0) and gold(I) complexes.
;
_journal_issue                   44
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              16122
_journal_page_last               16132
_journal_paper_doi               10.1039/d1dt02967c
_journal_volume                  50
_journal_year                    2021
_chemical_formula_moiety         'C37 H78 N4 P2 Si4 Sn2'
_chemical_formula_sum            'C37 H78 N4 P2 Si4 Sn2'
_chemical_formula_weight         990.71
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014
_audit_update_record
;
2021-10-05 deposited with the CCDC.	2021-10-06 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   10.5334(9)
_cell_length_b                   16.7794(15)
_cell_length_c                   54.962(5)
_cell_measurement_reflns_used    9925
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.220
_cell_measurement_theta_min      2.400
_cell_volume                     9714.2(15)
_computing_cell_refinement       'BRUKER APEX3'
_computing_data_collection       'BRUKER APEX3'
_computing_data_reduction        'BRUKER APEX3'
_computing_molecular_graphics
'MERCURY (Cambridge Crystallographic Data Centre: Cambridge, UK, 2020)'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SIR-97 (Giacovazzo, 1999)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker D8 VENTURE PHOTON III-14'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1136
_diffrn_reflns_av_unetI/netI     0.0831
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       68
_diffrn_reflns_limit_l_min       -68
_diffrn_reflns_number            118636
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.371
_diffrn_reflns_theta_min         1.916
_exptl_absorpt_coefficient_mu    1.222
_exptl_absorpt_correction_T_max  0.8878
_exptl_absorpt_correction_T_min  0.5345
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
SADABS-2016/2 - Bruker AXS area detector scaling and absorption correction 

Reference: Krause, L., Herbst-Irmer, R., Sheldrick G.M. & Stalke D., J. Appl. Cryst. 48 (2015) 3-10.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.355
_exptl_crystal_description       plate
_exptl_crystal_F_000             4112
_exptl_crystal_size_max          0.07
_exptl_crystal_size_mid          0.07
_exptl_crystal_size_min          0.02
_refine_diff_density_max         5.930
_refine_diff_density_min         -1.791
_refine_diff_density_rms         0.178
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.52(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.060
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     915
_refine_ls_number_reflns         19823
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.060
_refine_ls_R_factor_all          0.1188
_refine_ls_R_factor_gt           0.0935
_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^)+(0.0898P)^2^+110.5152P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2245
_refine_ls_wR_factor_ref         0.2430
_reflns_Friedel_coverage         0.817
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     1.000
_reflns_number_gt                15262
_reflns_number_total             19823
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1dt02967c2.cif
_cod_data_source_block           5-21cmc005
_cod_database_code               7708852
_shelxl_version_number           2014-3
_shelx_res_checksum              75432