Syntheses, Structures and Solid-State Properties of MMX Mixed-Valence Chains, [NiII/III2(RCS2)4I]∞(R = Et,n-Pr andn-Bu): Evidence of a Spin-Peierls Transition
Minoru Mitsumi; Yuji Yoshida; Akihisa Kohyama; Yasutaka Kitagawa; Yoshiki Ozawa; Mototada Kobayashi; Koshiro Toriumi; Makoto Tadokoro; Naoshi Ikeda; Mitsutaka Okumura; Mohamedally Kurmoo; Inorganic Chemistry 48 (2009) 6680–6691; doi:10.1021/ic900630a

data_4302714
_publ_contact_author_address
; 
Department of Material Science
Graduate School of Material Science
University of Hyogo
3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan 
;
_publ_contact_author_email       mitsumi@sci.u-hyogo.ac.jp
_publ_contact_author_fax         +81-791-58-0154
_publ_contact_author_name        'Mitsumi, Minoru'
_publ_contact_author_phone       +81-791-58-0153
_publ_section_title
;
Syntheses, Structures and Solid-State Properties of MMX Mixed-Valence
Chains, [NiII/III2(RCS2)4I]\\infty (R = Et,n-Pr andn-Bu): Evidence of a
Spin-Peierls Transition
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              6680
_journal_page_last               6691
_journal_paper_doi               10.1021/ic900630a
_journal_volume                  48
_journal_year                    2009
_chemical_formula_moiety         'C12 H20 I Ni2 S8'
_chemical_formula_sum            'C12 H20 I Ni2 S8'
_chemical_formula_weight         665.11
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      15
_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     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 114.459(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   17.274(3)
_cell_length_b                   8.3751(14)
_cell_length_c                   16.745(3)
_cell_measurement_reflns_used    4370
_cell_measurement_temperature    292(1)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.3
_cell_volume                     2205.1(7)
_computing_cell_refinement       'CRYSTAL CLEAR 1.3 (Rigaku, 2000)'
_computing_data_collection       'CRYSTAL CLEAR 1.3 (Rigaku, 2000)'
_computing_data_reduction        'SHELXL-97 (Sheldrick, 1997)'
_computing_molecular_graphics    'ORTEPII (Johnson, 1976)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR-97 (A. Altomare, 1999)'
_diffrn_ambient_temperature      292(2)
_diffrn_detector_area_resol_mean 14.62
_diffrn_measured_fraction_theta_full 0.967
_diffrn_measured_fraction_theta_max 0.967
_diffrn_measurement_device_type  'Rigaku/MSC Mercury CCD'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating-anode X-ray tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.0281
_diffrn_reflns_av_sigmaI/netI    0.0240
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            9977
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.29
_exptl_absorpt_coefficient_mu    3.859
_exptl_absorpt_correction_T_max  0.6762
_exptl_absorpt_correction_T_min  0.6338
_exptl_absorpt_correction_type   numerical
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    2.003
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             1316
_exptl_crystal_size_max          0.130
_exptl_crystal_size_mid          0.110
_exptl_crystal_size_min          0.110
_refine_diff_density_max         0.427
_refine_diff_density_min         -0.319
_refine_diff_density_rms         0.070
_refine_ls_extinction_coef       0.0000
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.180
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     108
_refine_ls_number_reflns         2455
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.180
_refine_ls_R_factor_all          0.0337
_refine_ls_R_factor_gt           0.0276
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0210P)^2^+2.4239P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0549
_refine_ls_wR_factor_ref         0.0566
_reflns_number_gt                2264
_reflns_number_total             2455
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic900630a_si_001.cif
_cod_data_source_block           '[Pt2(EtCS2)4I]_292K'
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4302714