Ternary Erbium Chromium Sulfides: Structural Relationships and Magnetic Properties
Paz Vaqueiro; Iwona Szkoda; Rodolfo D. Sanchez; Anthony V. Powell; Inorganic Chemistry 48 (2009) 1284–1292; doi:10.1021/ic801482a

data_4301423
_publ_contact_author_address
; 
 Department of Chemistry
Heriot Watt University
Edinburgh EH14 4AS
;
_publ_contact_author_email       a.v.powell@hw.ac.uk
_publ_contact_author_fax         '+44 131 4513180'
_publ_contact_author_name        'Anthony Powell'
_publ_contact_author_phone       '+44 131 4518034'
_publ_section_title
;
Ternary Erbium Chromium Sulfides: Structural Relationships and Magnetic
Properties
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              1284
_journal_page_last               1292
_journal_paper_doi               10.1021/ic801482a
_journal_volume                  48
_journal_year                    2009
_chemical_formula_moiety         'Cr1.04 Er3.96 S7'
_chemical_formula_sum            'Cr1.04 Er3.96 S7'
_chemical_formula_weight         940.93
_space_group_IT_number           12
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2y'
_symmetry_space_group_name_H-M   'C 1 2/m 1'
_atom_sites_solution_hydrogens   none
_atom_sites_solution_primary     direct
_audit_creation_date             08-01-21
_audit_creation_method           CRYSTALS_ver_12.51
_cell_angle_alpha                90
_cell_angle_beta                 105.850(2)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   12.5057(5)
_cell_length_b                   3.7650(2)
_cell_length_c                   11.2740(4)
_cell_measurement_reflns_used    0
_cell_measurement_temperature    293
_cell_measurement_theta_max      0
_cell_measurement_theta_min      0
_cell_volume                     510.64(4)
_computing_cell_refinement
; 
 Bruker X8 Apex 2 software 
;
_computing_data_collection
; 
 Bruker X8 Apex 2 software 
;
_computing_data_reduction
; 
 Bruker X8 Apex 2 software 
;
_computing_molecular_graphics    'CAMERON (Watkin et al., 1996)'
_computing_publication_material  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_refinement  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      293
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type
; 
Bruker X8 Apex 2
;
_diffrn_measurement_method       \w/2\q
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.031
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            6925
_diffrn_reflns_theta_full        30.467
_diffrn_reflns_theta_max         30.467
_diffrn_reflns_theta_min         1.878
_diffrn_standards_decay_%        0.0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    34.618
_exptl_absorpt_correction_T_max  0.177
_exptl_absorpt_correction_T_min  0.056
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SADABS'
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    6.119
_exptl_crystal_description       block
_exptl_crystal_F_000             812.513
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.05
_refine_diff_density_max         3.46
_refine_diff_density_min         -3.80
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   1.0105
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     44
_refine_ls_number_reflns         735
_refine_ls_number_restraints     8
_refine_ls_R_factor_all          0.0398
_refine_ls_R_factor_gt           0.0332
_refine_ls_shift/su_max          0.000761
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details
;
 Method, part 1, Chebychev polynomial, (Watkin, 1994, Prince, 1982) 
 [weight] = 1.0/[A~0~*T~0~(x)+A~1~*T~1~(x) ... +A~n-1~]*T~n-1~(x)] 
 where A~i~ are the Chebychev coefficients listed below and x= Fcalc/Fmax 
 Method = Robust Weighting (Prince, 1982) 
 W = [weight] * [1-(deltaF/6*sigmaF)^2^]^2^ 
 A~i~ are: 
 2.70 -1.36 2.30 
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.0284
_refine_ls_wR_factor_gt          0.0279
_refine_ls_wR_factor_ref         0.0279
_reflns_limit_h_max              16
_reflns_limit_h_min              -17
_reflns_limit_k_max              5
_reflns_limit_k_min              0
_reflns_limit_l_max              16
_reflns_limit_l_min              0
_reflns_number_gt                735
_reflns_number_total             878
_reflns_threshold_expression     I>3.00u(I)
_oxford_diffrn_Wilson_B_factor   0.76
_oxford_diffrn_Wilson_scale      17.60
_oxford_refine_ls_scale          0.1935(6)
_oxford_structure_analysis_title 'Er4CrS7 in C2/m'
_cod_data_source_file            ic801482a_si_002_4.cif
_cod_data_source_block           structure4
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      'C 1 2/m 1 '
_cod_database_code               4301423