Facile synthesis of Pd(ii) and Ni(ii) pincer carbene complexes by the double C-H bond activation of a new hexahydropyrimidine-based bis(phosphine): catalysis of C-N couplings.
Subramaniyan, Vasudevan; Dutta, Bidisa; Govindaraj, Anbarasu; Mani, Ganesan; Dalton transactions (Cambridge, England : 2003) 48 (2019) 7203–7210; doi:10.1039/c8dt03413c

data_7048523
_publ_section_title
;
 Facile synthesis of Pd(ii) and Ni(ii) pincer carbene complexes by the
 double C-H bond activation of a new hexahydropyrimidine-based
 bis(phosphine): catalysis of C-N couplings.
;
_journal_issue                   21
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              7203
_journal_page_last               7210
_journal_paper_doi               10.1039/c8dt03413c
_journal_volume                  48
_journal_year                    2019
_chemical_formula_moiety         'C30 H30 Cl N2 P2 Pd, C H2 Cl2, Cl'
_chemical_formula_sum            'C31 H32 Cl4 N2 P2 Pd'
_chemical_formula_weight         742.72
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2018-06-23
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2018-11-23 deposited with the CCDC.
2019-01-09 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 99.294(5)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   36.962(4)
_cell_length_b                   10.2290(11)
_cell_length_c                   16.7982(18)
_cell_measurement_reflns_used    5496
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      24.993
_cell_measurement_theta_min      2.068
_cell_volume                     6267.8(12)
_computing_cell_refinement       APEX3
_computing_data_collection       APEX3
_computing_data_reduction        APEX3
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      293.15
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker-D8 Venture APEX3'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0656
_diffrn_reflns_av_unetI/netI     0.0387
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       35
_diffrn_reflns_limit_h_min       -43
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            34963
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        24.993
_diffrn_reflns_theta_max         24.993
_diffrn_reflns_theta_min         2.068
_diffrn_source                   'Fine focused sealed tube'
_exptl_absorpt_coefficient_mu    1.060
_exptl_absorpt_correction_T_max  1
_exptl_absorpt_correction_T_min  0.704958
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2004/1 (Bruker,2004) was used for absorption correction.
R(int) was 0.1085 before and 0.0450 after correction.
The Ratio of minimum to maximum transmission is 0.7050.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.574
_exptl_crystal_description       prism
_exptl_crystal_F_000             3008
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.687
_refine_diff_density_min         -0.811
_refine_diff_density_rms         0.084
_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     380
_refine_ls_number_reflns         5496
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.060
_refine_ls_R_factor_all          0.0403
_refine_ls_R_factor_gt           0.0324
_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^)+(0.0380P)^2^+7.9143P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0766
_refine_ls_wR_factor_ref         0.0803
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4729
_reflns_number_total             5496
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8dt03413c2.cif
_cod_data_source_block           PCP-Pd
_cod_depositor_comments
'Adding full bibliography for 7048523--7048526.cif.'
_cod_database_code               7048523
_shelx_shelxl_version_number     2018/1
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups, All C(H,H,H,H) groups
2. Restrained distances
 C31-Cl3 \\sim C31-Cl3A
 with sigma of 0.02
 C31-Cl4 \\sim C31-Cl4A
 with sigma of 0.02
3. Others
 Sof(H31C)=Sof(H31D)=Sof(Cl4A)=Sof(Cl3A)=1-FVAR(1)
 Sof(H31A)=Sof(H31B)=Sof(Cl3)=Sof(Cl4)=FVAR(1)
4.a Secondary CH2 refined with riding coordinates:
 C13(H13A,H13B), C14(H14A,H14B), C15(H15A,H15B), C16(H16A,H16B), C18(H18A,
 H18B), C31(H31A,H31B), C31(H31C,H31D)
4.b Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C4(H4), C5(H5), C6(H6), C8(H8), C9(H9), C10(H10), C11(H11),
 C12(H12), C20(H20), C21(H21), C22(H22), C23(H23), C24(H24), C26(H26), C27(H27),
  C28(H28), C29(H29), C30(H30)
;
_shelx_res_checksum              32816
_olex2_submission_special_instructions 'No special instructions were received'