Assembly of polyoxometalates and Ni-bpy cationic units into the molecular core‒shell structures as the bifunctional electrocatalysts
Wang, Chun-Jie; Yao, shuang; Chen, Yi-Zhen; Zhang, Zhi-Ming; Wang, Enbo; RSC Adv.  (2016) –; doi:10.1039/C6RA19257B

data_7226719
_publ_section_title
;
 Assembly of polyoxometalates and Ni-bpy cationic units into the molecular
 core--shell structures as the bifunctional electrocatalysts
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C6RA19257B
_journal_year                    2016
_chemical_formula_moiety
'C20 H16 Ge N4 Ni O41 W12, 1.5(C30 H24 N6 Ni)'
_chemical_formula_sum            'C65 H52 Ge N13 Ni2.5 O41 W12'
_chemical_formula_weight         4096.76
_chemical_name_systematic
;
 ?
;
_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
_audit_creation_date             2016-09-30
_audit_creation_method
;
Olex2 1.2-dev
(compiled 2016.09.27 svn.r3342 for OlexSys, GUI svn.r3563)
;
_audit_update_record
;
2016-10-04 deposited with the CCDC.
2016-10-05 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90.35(3)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   46.756(9)
_cell_length_b                   14.374(3)
_cell_length_c                   26.151(5)
_cell_measurement_reflns_used    8257
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.00
_cell_measurement_theta_min      3.02
_cell_volume                     17575(6)
_computing_cell_refinement       auto
_computing_data_collection       auto
_computing_data_reduction        auto
_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    'SHELXL-2014 (Sheldrick, 2014)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Bruker APEX CCD area-detector'
_diffrn_measurement_method       '\f and \w scan'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.2426
_diffrn_reflns_av_unetI/netI     0.2150
_diffrn_reflns_Laue_measured_fraction_full 0.990
_diffrn_reflns_Laue_measured_fraction_max 0.990
_diffrn_reflns_limit_h_max       58
_diffrn_reflns_limit_h_min       -60
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            80883
_diffrn_reflns_point_group_measured_fraction_full 0.990
_diffrn_reflns_point_group_measured_fraction_max 0.990
_diffrn_reflns_theta_full        25.000
_diffrn_reflns_theta_max         25.000
_diffrn_reflns_theta_min         3.023
_exptl_absorpt_coefficient_mu    16.585
_exptl_absorpt_correction_T_max  0.6360
_exptl_absorpt_correction_T_min  0.2878
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'ABSCOR by T.Higashi 8 March, 1995'
_exptl_crystal_colour            pink
_exptl_crystal_colour_primary    pink
_exptl_crystal_density_diffrn    3.096
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             14808
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.03
_refine_diff_density_max         3.623
_refine_diff_density_min         -2.137
_refine_diff_density_rms         0.374
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.996
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1212
_refine_ls_number_reflns         15325
_refine_ls_number_restraints     1038
_refine_ls_restrained_S_all      0.971
_refine_ls_R_factor_all          0.1475
_refine_ls_R_factor_gt           0.0728
_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^)+(0.0586P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1416
_refine_ls_wR_factor_ref         0.1692
_reflns_Friedel_coverage         0.000
_reflns_number_gt                8257
_reflns_number_total             15325
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6ra19257b2.cif
_cod_data_source_block           3
_cod_original_cell_volume        17576(6)
_cod_original_formula_sum        'C65 H52 Ge N13 Ni2.50 O41 W12'
_cod_database_code               7226719
_shelx_estimated_absorpt_t_max   0.636
_shelx_estimated_absorpt_t_min   0.288
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2. Restrained distances
 C64-C62 = C64-C65 = C31-C54
 1.4 with sigma of 0.02
3. Uiso/Uaniso restraints and constraints
Uanis(O14) \\sim Ueq, Uanis(O17) \\sim Ueq, Uanis(O26) \\sim Ueq, Uanis(O30)
\\sim Ueq, Uanis(O34) \\sim Ueq, Uanis(C1) \\sim Ueq, Uanis(C3) \\sim Ueq,
Uanis(C5) \\sim Ueq, Uanis(C9) \\sim Ueq, Uanis(C13) \\sim Ueq, Uanis(C16)
\\sim Ueq, Uanis(C19) \\sim Ueq, Uanis(C21) \\sim Ueq, Uanis(C23) \\sim Ueq,
Uanis(C26) \\sim Ueq, Uanis(C29) \\sim Ueq: with sigma of 0.01 and sigma for
terminal atoms of 0.02
Uanis(C31) \\sim Ueq, Uanis(C39) \\sim Ueq, Uanis(C41) \\sim Ueq, Uanis(C42)
\\sim Ueq, Uanis(C44) \\sim Ueq, Uanis(C45) \\sim Ueq, Uanis(C46) \\sim Ueq,
Uanis(C48) \\sim Ueq, Uanis(C49) \\sim Ueq, Uanis(C54) \\sim Ueq, Uanis(C56)
\\sim Ueq, Uanis(C57) \\sim Ueq, Uanis(C58) \\sim Ueq, Uanis(C59) \\sim Ueq,
Uanis(C60) \\sim Ueq, Uanis(C61) \\sim Ueq, Uanis(C62) \\sim Ueq, Uanis(C63)
\\sim Ueq, Uanis(C64) \\sim Ueq, Uanis(C65) \\sim Ueq, Uanis(N10) \\sim Ueq,
Uanis(N8) \\sim Ueq, Uanis(N3) \\sim Ueq: with sigma of 0.01 and sigma for
terminal atoms of 0.02
Uanis(O7) \\sim Ueq, Uanis(O28) \\sim Ueq, Uanis(C20) \\sim Ueq, Uanis(C8)
\\sim Ueq, Uanis(O30) \\sim Ueq, Uanis(O31) \\sim Ueq: with sigma of 0.01 and
sigma for terminal atoms of 0.02
Uanis(O9) \\sim Ueq: with sigma of 0.005 and sigma for terminal atoms of 0.01
4. Rigid body (RIGU) restrains
 Ni2, N1, N2, N3, N5, N6, N7, C3, C30, C10, C26, C33, C35, C17, C46, C8, C14,
 C21, C34, C5, C6, C50, C32, C28, C45, C22, C15, C12, C1, C7, C37, C36, C13,
 C27, C19, C9, C18
 with sigma for 1-2 distances of 0.004 and sigma for 1-3 distances of 0.004
 Ni3, N4, N10, N12, C2, C24, C41, C62, C25, C43, C51, C40, C60, C64, C38, C55,
 C42, C65, C48
 with sigma for 1-2 distances of 0.004 and sigma for 1-3 distances of 0.004
 Ni1, O2, O3, C4, C11, C16, C20, C23, C29, C31, C39, C47, C49, C52, C53, C54,
 C56, C57, C58, C59, C61, C63, N8, N9, N11, N13, C44
 with sigma for 1-2 distances of 0.004 and sigma for 1-3 distances of 0.004
5.a Aromatic/amide H refined with riding coordinates:
 C1(H1), C4(H4), C5(H5), C6(H6), C7(H7), C8(H8), C9(H9), C11(H11), C12(H12),
 C13(H13), C15(H15), C17(H17), C18(H18), C19(H19), C21(H21), C22(H22), C23(H23),
  C24(H24), C26(H26), C27(H27), C28(H28), C30(H30), C31(H31), C32(H32),
 C35(H35), C36(H36), C37(H37), C38(H38), C39(H39), C40(H40), C42(H42), C43(H43),
  C44(H44), C45(H45), C47(H47), C48(H48), C50(H50), C51(H51), C52(H52),
 C53(H53), C54(H54), C55(H55), C56(H56), C57(H57), C58(H58), C59(H59), C60(H60),
  C61(H61), C62(H62), C63(H63), C64(H64), C65(H65)
;
_shelx_fab_checksum              30792
_shelx_shelxl_version_number     2014/7
_olex2_submission_special_instructions 'No special instructions were received'