Infrared nonlinear optical properties of lithium-containing diamond-like semiconductors Li2ZnGeSe4 and Li2ZnSnSe4.
Zhang, Jian-Han; Clark, Daniel J.; Brant, Jacilynn A.; Sinagra, Charles W.; Kim, Yong Soo; Jang, Joon I.; Aitken, Jennifer A.; Dalton transactions (Cambridge, England : 2003) 44 (2015) 11212–11222; doi:10.1039/c5dt01635e

data_7035177
_publ_section_title
;
 Infrared nonlinear optical properties of lithium-containing diamond-like
 semiconductors Li2ZnGeSe4 and Li2ZnSnSe4.
;
_journal_issue                   24
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              11212
_journal_page_last               11222
_journal_paper_doi               10.1039/c5dt01635e
_journal_volume                  44
_journal_year                    2015
_chemical_formula_sum            'Ge Li2 Se4 Zn'
_chemical_formula_weight         467.68
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           7
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P -2yac'
_symmetry_space_group_name_H-M   'P 1 n 1'
_atom_sites_solution_hydrogens   none
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.0630(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   6.55150(10)
_cell_length_b                   6.85890(10)
_cell_length_c                   8.24270(10)
_cell_measurement_temperature    296(2)
_cell_volume                     370.394(9)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SMART'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_detector_area_resol_mean NA
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker Smart Apex II'
_diffrn_measurement_method       'Phi and Omega Scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0280
_diffrn_reflns_av_sigmaI/netI    0.0364
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            4672
_diffrn_reflns_theta_full        27.09
_diffrn_reflns_theta_max         27.09
_diffrn_reflns_theta_min         2.97
_diffrn_standards_decay_%        NA
_diffrn_standards_interval_count NA
_diffrn_standards_interval_time  NA
_diffrn_standards_number         NA
_exptl_absorpt_coefficient_mu    26.828
_exptl_absorpt_correction_T_max  0.4133
_exptl_absorpt_correction_T_min  0.0667
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    4.193
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             408
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.04
_refine_diff_density_max         1.215
_refine_diff_density_min         -1.207
_refine_diff_density_rms         0.206
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.85(6)
_refine_ls_extinction_coef       0.0074(6)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.149
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     65
_refine_ls_number_reflns         1601
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.149
_refine_ls_R_factor_all          0.0335
_refine_ls_R_factor_gt           0.0328
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0000P)^2^+5.2261P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0802
_refine_ls_wR_factor_ref         0.0806
_reflns_number_gt                1576
_reflns_number_total             1601
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5dt01635e2.cif
_cod_data_source_block           Li2ZnGeSe4
_cod_depositor_comments
'Adding full bibliography for 7035177--7035178.cif.'
_cod_original_sg_symbol_H-M      Pn
_cod_database_code               7035177