Structural Diversity and Energetics in Anhydrous Lithium Tartrates: Experimental and Computational Studies of Novel Chiral Polymorphs and Their Racemic and Meso Analogues
Yeung, Hamish H.-M.; Kosa, Monica; Parrinello, Michele; Forster, Paul M.; Cheetham, Anthony K.; Crystal Growth & Design 11 (2011) 221–; doi:10.1021/cg101170k

data_4500165
_publ_section_title
;
 Structural Diversity and Energetics in Anhydrous Lithium Tartrates:
 Experimental and Computational Studies of Novel Chiral Polymorphs and
 Their Racemic and Meso Analogues
;
_journal_issue                   1
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              221
_journal_paper_doi               10.1021/cg101170k
_journal_volume                  11
_journal_year                    2011
_chemical_formula_moiety         '(Li 1+)2 (C4 H4 O6 2-)'
_chemical_formula_sum            'C4 H4 Li2 O6'
_chemical_formula_weight         161.95
_chemical_name_common            'Dilithium meso-tartrate'
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 100.474(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   6.0522(9)
_cell_length_b                   5.3351(8)
_cell_length_c                   9.8636(14)
_cell_measurement_reflns_used    10520
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.91
_cell_volume                     313.18(8)
_computing_cell_refinement
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)'
_computing_data_collection       'COLLECT (Hooft, R.W.W., 1998)'
_computing_data_reduction
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)'
_computing_molecular_graphics
;   
'Ortep-3 for Windows (Farrugia, 1997), 
DIAMOND (Brandenburg, K., 1999) & 
Mercury (Macrae, C.F. et al., 2006)'
;
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution
"'Superflip' (Palatinus L., Chapuis G., 2007)"
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean '4096x4096pixels / 62x62mm'
_diffrn_measured_fraction_theta_full 0.982
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device_type
'Bruker-Nonius APEX II CCD camera on \k-goniostat'
_diffrn_measurement_method       '\f & \w scans'
_diffrn_radiation_monochromator  '10cm confocal mirrors'
_diffrn_radiation_source         'Bruker-Nonius FR591 rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0554
_diffrn_reflns_av_sigmaI/netI    0.0470
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            3246
_diffrn_reflns_theta_full        27.59
_diffrn_reflns_theta_max         27.59
_diffrn_reflns_theta_min         3.42
_exptl_absorpt_coefficient_mu    0.158
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.717
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             164
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.316
_refine_diff_density_min         -0.263
_refine_diff_density_rms         0.073
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.014
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     62
_refine_ls_number_reflns         713
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.018
_refine_ls_R_factor_all          0.1059
_refine_ls_R_factor_gt           0.0810
_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^)+(0.0583P)^2^+1.1685P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1736
_refine_ls_wR_factor_ref         0.1906
_reflns_number_gt                543
_reflns_number_total             713
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            cg101170k_si_002.cif
_cod_data_source_block           4-Li2mesoTartrate
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4500165