Selective NH<sub>3</sub>-to-N<sub>2</sub>H<sub>4</sub> conversion electrocatalysed by ruthenium(ii)-cymene complexes.
Zhang, Xi; Zhao, Shan; Zhou, Chen; Chen, Guo; Cao, Liru; Lin, Jian; Tang, Chen; Liu, Zhi-Yan; He, Piao; Yi, Xiao-Yi; Chemical science 17 (2026) 5595–5603; doi:10.1039/d5sc08826g

data_1576924
_publ_section_title
;
 Selective NH<sub>3</sub>-to-N<sub>2</sub>H<sub>4</sub> conversion
 electrocatalysed by ruthenium(ii)-cymene complexes.
;
_journal_issue                   11
_journal_name_full               'Chemical science'
_journal_page_first              5595
_journal_page_last               5603
_journal_paper_doi               10.1039/d5sc08826g
_journal_volume                  17
_journal_year                    2026
_chemical_formula_moiety         'C22 H27 Cl N2 Ru'
_chemical_formula_sum            'C22 H27 Cl N2 Ru'
_chemical_formula_weight         455.97
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2023-12-23
_audit_creation_method
;
Olex2 1.5
(compiled 2022.04.07 svn.rca3783a0 for OlexSys, GUI svn.r6498)
;
_audit_update_record
;
2023-12-23 deposited with the CCDC.	2026-01-12 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 113.872(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   17.0430(8)
_cell_length_b                   7.7147(4)
_cell_length_c                   16.6516(8)
_cell_measurement_reflns_used    3321
_cell_measurement_temperature    296.15
_cell_measurement_theta_max      25.19
_cell_measurement_theta_min      2.46
_cell_volume                     2002.08(18)
_computing_cell_refinement       'SAINT v8.34A (Bruker, 2013)'
_computing_data_reduction        'SAINT v8.34A (Bruker, 2013)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      296.15
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0367
_diffrn_reflns_av_unetI/netI     0.0416
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            13175
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.993
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.496
_diffrn_reflns_theta_min         2.457
_diffrn_source_current           30.0
_diffrn_source_power             1.35
_diffrn_source_voltage           45.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.924
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6663
_exptl_absorpt_correction_type   none
_exptl_absorpt_process_details
;
SADABS-2014/5 (Bruker,2014/5) was used for absorption correction.
wR2(int) was 0.0494 before and 0.0427 after correction.
The Ratio of minimum to maximum transmission is 0.8936.
The \l/2 correction factor is 0.00150.
;
_exptl_crystal_colour            'clear light orange'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    orange
_exptl_crystal_density_diffrn    1.513
_exptl_crystal_description       block
_exptl_crystal_F_000             936
_refine_diff_density_max         0.454
_refine_diff_density_min         -0.353
_refine_diff_density_rms         0.071
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.023
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     241
_refine_ls_number_reflns         4555
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.023
_refine_ls_R_factor_all          0.0491
_refine_ls_R_factor_gt           0.0337
_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^)+(0.0373P)^2^+0.1306P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0733
_refine_ls_wR_factor_ref         0.0797
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3566
_reflns_number_total             4555
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5sc08826g2.cif
_cod_data_source_block           1_CCDC2
_cod_database_code               1576924
_shelx_shelxl_version_number     2018/3
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C00G(H00G)
2.b Aromatic/amide H refined with riding coordinates:
 C3(H3), C006(H006), C2(H2), C5(H5), C6(H6), C00I(H00I), C00K(H00K), C00N(H00N)
2.c Idealised Me refined as rotating group:
 C00J(H00A,H00B,H00C), C00L(H00D,H00E,H00F), C00M(H00H,H00J,H00L), C00O(H00M,
 H00O,H00P), C00P(H00Q,H00R,H00S), C00Q(H00T,H00U,H00V)
;
_shelx_res_checksum              16944
_olex2_submission_special_instructions 'No special instructions were received'