Synthesis, Structure, and Characterization of New Li± d0-Lone-Pair - Oxides: Noncentrosymmetric Polar Li6(Mo2O5)3(SeO3)6and Centrosymmetric Li2(MO3)(TeO3) (M = Mo6+or W6+)
Sau Doan Nguyen; P. Shiv Halasyamani; Inorganic Chemistry 51 (2012) 9529–9538; doi:10.1021/ic301334c

data_4330274
_publ_contact_author_address
;  
Department of Chemistry  
University of Houston  
Houston, Texas  
77204-5003  
USA  
;
_publ_contact_author_email       psh@uh.edu
_publ_contact_author_fax         1-713-743-0796
_publ_contact_author_name        'P. Shiv Halasyamani'
_publ_contact_author_phone       1-713-743-3278
_publ_section_title
;
 Synthesis, Structure, and Characterization of New Li+- d0-Lone-Pair -
 Oxides: Noncentrosymmetric Polar Li6(Mo2O5)3(SeO3)6and Centrosymmetric
 Li2(MO3)(TeO3) (M = Mo6+or W6+)
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              9529
_journal_page_last               9538
_journal_paper_doi               10.1021/ic301334c
_journal_volume                  51
_journal_year                    2012
_chemical_absolute_configuration unk
_chemical_formula_moiety         'Li6 Mo6 Se6 O33 '
_chemical_formula_sum            'Li6 Mo6 O33 Se6'
_chemical_formula_weight         1619.04
_chemical_name_systematic
; 

? 
;
_space_group_IT_number           31
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      31
_symmetry_space_group_name_Hall  'P 2ac -2'
_symmetry_space_group_name_H-M   'P m n 21'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.3
_audit_creation_date             2011-05-07T10:37:45-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.2687(4)
_cell_length_b                   16.6546(7)
_cell_length_c                   19.2321(8)
_cell_measurement_reflns_used    356
_cell_measurement_temperature    298.0(2)
_cell_measurement_theta_max      27
_cell_measurement_theta_min      1.2
_cell_volume                     2648.5(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Siemens area CCD'
_diffrn_measurement_method       'Omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0516
_diffrn_reflns_av_unetI/netI     0.0446
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            15543
_diffrn_reflns_theta_full        25
_diffrn_reflns_theta_max         26.97
_diffrn_reflns_theta_min         1.22
_exptl_absorpt_coefficient_mu    11.138
_exptl_absorpt_correction_T_max  0.8968
_exptl_absorpt_correction_T_min  0.4022
_exptl_absorpt_correction_type   psi-scans
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    4.06
_exptl_crystal_description       rod
_exptl_crystal_F_000             2952
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.01
_exptl_crystal_size_min          0.01
_refine_diff_density_max         1.98
_refine_diff_density_min         -1.133
_refine_diff_density_rms         0.189
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.000(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.992
_refine_ls_matrix_type           full
_refine_ls_number_parameters     512
_refine_ls_number_reflns         4830
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.992
_refine_ls_R_factor_all          0.0322
_refine_ls_R_factor_gt           0.0282
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0330P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0632
_refine_ls_wR_factor_ref         0.0641
_reflns_number_gt                4328
_reflns_number_total             4830
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic301334c_si_002_1.cif
_cod_data_source_block           Li6(Mo2O5)3(SeO3)6
_cod_original_formula_sum        'Li6 Mo6 Se6 O33'
_cod_database_code               4330274