A tetranuclear lanthanum-nickel hydrido complex supported by an arene-anchored bis(phosphinomethylamido) ligand.
He, Xiuyan; Wu, Changjiang; Hong, Dongjing; Fang, Huayi; Cui, Peng; Chemical communications (Cambridge, England) 62 (2026) 3807–3810; doi:10.1039/d5cc06726j

data_7135356
_publ_section_title
;
 A tetranuclear lanthanum-nickel hydrido complex supported by an
 arene-anchored bis(phosphinomethylamido) ligand.
;
_journal_issue                   12
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              3807
_journal_page_last               3810
_journal_paper_doi               10.1039/d5cc06726j
_journal_volume                  62
_journal_year                    2026
_chemical_formula_moiety         'C64 H88 I2 La2 N4 P4, 2(C6 H6)'
_chemical_formula_sum            'C76 H100 I2 La2 N4 P4'
_chemical_formula_weight         1725.09
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_atom_sites_solution_secondary   difmap
_audit_creation_date             2023-11-28
_audit_creation_method
;
Olex2 1.5
(compiled 2022.04.07 svn.rca3783a0 for OlexSys, GUI svn.r6498)
;
_audit_update_record
;
2025-09-03 deposited with the CCDC.	2026-01-07 downloaded from the CCDC.
;
_cell_angle_alpha                77.377(2)
_cell_angle_beta                 84.430(2)
_cell_angle_gamma                84.471(2)
_cell_formula_units_Z            1
_cell_length_a                   10.2900(15)
_cell_length_b                   11.7435(17)
_cell_length_c                   16.775(2)
_cell_measurement_reflns_used    2780
_cell_measurement_temperature    293.15
_cell_measurement_theta_max      22.675
_cell_measurement_theta_min      2.382
_cell_volume                     1962.9(5)
_computing_cell_refinement       'SAINT V8.40B (?, 2016)'
_computing_data_collection       'Bruker D8 Venture diffractometer'
_computing_data_reduction        'SAINT V8.40B (?, 2016)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2019/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      293.15
_diffrn_detector                 'CCD area detector'
_diffrn_detector_area_resol_mean 7.9
_diffrn_detector_type            'CCD area detector'
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0698
_diffrn_reflns_av_unetI/netI     0.1136
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.994
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            14147
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.994
_diffrn_reflns_theta_full        24.846
_diffrn_reflns_theta_max         24.846
_diffrn_reflns_theta_min         1.248
_diffrn_source                   'sealed X-ray tube'
_diffrn_source_current           30.0
_diffrn_source_power             1.5
_diffrn_source_target            Mo
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.983
_exptl_absorpt_correction_T_max  0.7451
_exptl_absorpt_correction_T_min  0.4321
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1111 before and 0.0494 after correction.
The Ratio of minimum to maximum transmission is 0.5799.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            'clear light yellow'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    1.459
_exptl_crystal_description       block
_exptl_crystal_F_000             864
_exptl_crystal_recrystallization_method
'The crystals were growth by means of evaporation of a mixture of n-hexane and toluene at RT.'
_exptl_crystal_size_max          0.13
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.848
_refine_diff_density_min         -0.671
_refine_diff_density_rms         0.112
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.006
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     578
_refine_ls_number_reflns         6756
_refine_ls_number_restraints     569
_refine_ls_restrained_S_all      0.980
_refine_ls_R_factor_all          0.1203
_refine_ls_R_factor_gt           0.0557
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0200P)^2^+3.1500P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0813
_refine_ls_wR_factor_ref         0.0972
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3979
_reflns_number_total             6756
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5cc06726j2.cif
_cod_data_source_block           231127c
_cod_database_code               7135356
_shelx_shelxl_version_number     2019/3
_shelx_estimated_absorpt_t_max   0.842
_shelx_estimated_absorpt_t_min   0.783
_exptl_crystal_mounting_method
'Crystals were removed from the crystallisation vial and immediately coated with polybutenes oil (CAS: 9003-29-6) on a glass slide. A suitable single crystal coated with polybutenes oil as less as possible was sealed in capillary tube filled with argon. The capillary tube with single crystal was mounted on copper pin with solid paraffin.'
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2. Restrained distances
 C35-C34 = C34-C33 = C38-C33 = C38-C37 = C37-C36 = C36-C35
 1.39 with sigma of 0.01
 C33-C35 \\sim C34-C36 \\sim C35-C37 \\sim C36-C38 \\sim C37-C33 \\sim C38-C34
 with sigma of 0.02
3. Restrained planarity
 C33, C34, C35, C36, C37, C38
 with sigma of 0.1
 C37A, C33A, C34A, C38A, C35A, C36A
 with sigma of 0.1
4. Uiso/Uaniso restraints and constraints
P1 \\sim C14 \\sim C15 \\sim C16 \\sim C17 \\sim C18 \\sim C19 \\sim C14A \\sim
C15A \\sim C16A \\sim C17A \\sim C18A \\sim C19A: within 2A with sigma of 0.01
and sigma for terminal atoms of 0.02 within 2A
P2 \\sim C27 \\sim C28 \\sim C29 \\sim C30 \\sim C31 \\sim C32 \\sim C27A \\sim
C28A \\sim C29A \\sim C30A \\sim C31A \\sim C32A: within 2A with sigma of 0.01
and sigma for terminal atoms of 0.02 within 2A
C33 \\sim C34 \\sim C35 \\sim C36 \\sim C37 \\sim C38 \\sim C33A \\sim C34A
\\sim C35A \\sim C36A \\sim C37A \\sim C38A: within 2A with sigma of 0.01 and
sigma for terminal atoms of 0.02 within 2A
5. Same fragment restrains
{P1, C14A, C15A, C16A, C17A, C18A, C19A} sigma for 1-2: 0.02, 1-3: 0.04
as in
{P1, C14, C15, C16, C17, C18, C19}
{P2, C27A, C28A, C29A, C30A, C31A, C32A} sigma for 1-2: 0.02, 1-3: 0.04
as in
{P2, C27, C28, C29, C30, C31, C32}
{C33A, C34A, C35A, C36A, C37A, C38A} sigma for 1-2: 0.02, 1-3: 0.04
as in
{C33, C34, C35, C36, C37, C38}
6. Others
 Sof(C27A)=Sof(H27A)=Sof(C28A)=Sof(H28D)=Sof(H28E)=Sof(H28F)=Sof(C29A)=
 Sof(H29D)=Sof(H29E)=Sof(H29F)=Sof(C30A)=Sof(H30A)=Sof(C31A)=Sof(H31D)=
 Sof(H31E)=Sof(H31F)=Sof(C32A)=Sof(H32D)=Sof(H32E)=Sof(H32F)=1-FVAR(1)
 Sof(C27)=Sof(H27)=Sof(C28)=Sof(H28A)=Sof(H28B)=Sof(H28C)=Sof(C29)=Sof(H29A)=
 Sof(H29B)=Sof(H29C)=Sof(C30)=Sof(H30)=Sof(C31)=Sof(H31A)=Sof(H31B)=Sof(H31C)=
 Sof(C32)=Sof(H32A)=Sof(H32B)=Sof(H32C)=FVAR(1)
 Sof(C14A)=Sof(H14A)=Sof(C15A)=Sof(H15D)=Sof(H15E)=Sof(H15F)=Sof(C16A)=
 Sof(H16D)=Sof(H16E)=Sof(H16F)=Sof(C17A)=Sof(H17A)=Sof(C18A)=Sof(H18D)=
 Sof(H18E)=Sof(H18F)=Sof(C19A)=Sof(H19D)=Sof(H19E)=Sof(H19F)=1-FVAR(2)
 Sof(C14)=Sof(H14)=Sof(C15)=Sof(H15A)=Sof(H15B)=Sof(H15C)=Sof(C16)=Sof(H16A)=
 Sof(H16B)=Sof(H16C)=Sof(C17)=Sof(H17)=Sof(C18)=Sof(H18A)=Sof(H18B)=Sof(H18C)=
 Sof(C19)=Sof(H19A)=Sof(H19B)=Sof(H19C)=FVAR(2)
 Sof(C33A)=Sof(H33A)=Sof(C34A)=Sof(H34A)=Sof(C35A)=Sof(H35A)=Sof(C36A)=
 Sof(H36A)=Sof(C37A)=Sof(H37A)=Sof(C38A)=Sof(H38A)=1-FVAR(3)
 Sof(C33)=Sof(H33)=Sof(C34)=Sof(H34)=Sof(C35)=Sof(H35)=Sof(C36)=Sof(H36)=
 Sof(C37)=Sof(H37)=Sof(C38)=Sof(H38)=FVAR(3)
7.a Ternary CH refined with riding coordinates:
 C14(H14), C17(H17), C27(H27), C30(H30), C14A(H14A), C17A(H17A), C27A(H27A),
 C30A(H30A)
7.b Secondary CH2 refined with riding coordinates:
 C13(H13A,H13B), C26(H26A,H26B)
7.c Aromatic/amide H refined with riding coordinates:
 C2(H2), C4(H4), C5(H5), C6(H6), C8(H8), C9(H9), C10(H10), C11(H11), C21(H21),
 C22(H22), C23(H23), C24(H24), C33(H33), C34(H34), C35(H35), C36(H36), C37(H37),
  C38(H38), C33A(H33A), C34A(H34A), C35A(H35A), C36A(H36A), C37A(H37A),
 C38A(H38A)
7.d Idealised Me refined as rotating group:
 C15(H15A,H15B,H15C), C16(H16A,H16B,H16C), C18(H18A,H18B,H18C), C19(H19A,H19B,
 H19C), C28(H28A,H28B,H28C), C29(H29A,H29B,H29C), C31(H31A,H31B,H31C), C32(H32A,
 H32B,H32C), C15A(H15D,H15E,H15F), C16A(H16D,H16E,H16F), C18A(H18D,H18E,H18F),
 C19A(H19D,H19E,H19F), C28A(H28D,H28E,H28F), C29A(H29D,H29E,H29F), C31A(H31D,
 H31E,H31F), C32A(H32D,H32E,H32F)
;
_shelx_res_checksum              13409
_olex2_submission_special_instructions 'No special instructions were received'