Novel 1,2,4-thiadiazole derivatives: crystal structure, conformational analysis, hydrogen bond networks, calculations, and thermodynamic characteristics of crystal lattices.
Surov, Artem O.; Bui, Cong Trinh; Proshin, Alexey N.; Roussel, Pascal; Idrissi, Abdenacer; Perlovich, German L.; The journal of physical chemistry. B 117 (2013) 10414–10429; doi:10.1021/jp405624e

data_1512256
_publ_section_title
;
 Novel 1,2,4-thiadiazole derivatives: crystal structure, conformational
 analysis, hydrogen bond networks, calculations, and thermodynamic
 characteristics of crystal lattices.
;
_journal_issue                   36
_journal_name_full               'The journal of physical chemistry. B'
_journal_page_first              10414
_journal_page_last               10429
_journal_paper_doi               10.1021/jp405624e
_journal_volume                  117
_journal_year                    2013
_chemical_formula_moiety         'C12 H15 N3 O1 S1'
_chemical_formula_sum            'C12 H15 N3 O S'
_chemical_formula_weight         249.34
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     other
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   8.6335(2)
_cell_length_b                   14.1307(3)
_cell_length_c                   21.2871(5)
_cell_measurement_reflns_used    9535
_cell_measurement_temperature    293
_cell_measurement_theta_max      28
_cell_measurement_theta_min      3
_cell_volume                     2596.97(10)
_computing_cell_refinement       'Apex2 (Bruker AXS, 2006)'
_computing_data_collection       'Apex2 (Bruker AXS, 2006)'
_computing_data_reduction        'Apex2 (Bruker AXS, 2006)'
_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    'Superflip (Palatinus & Chapuis, 2007)'
_diffrn_ambient_temperature      293
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.921
_diffrn_measurement_device       Area
_diffrn_measurement_device_type  'Bruker Kappa Apex2'
_diffrn_measurement_method       '\f & \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.028
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            66101
_diffrn_reflns_theta_full        25.299
_diffrn_reflns_theta_max         30.481
_diffrn_reflns_theta_min         2.883
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.237
_exptl_absorpt_correction_T_max  0.99
_exptl_absorpt_correction_T_min  0.93
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Siemens, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.275
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       octahedral
_exptl_crystal_F_000             1056
_exptl_crystal_size_max          0.025
_exptl_crystal_size_mid          0.025
_exptl_crystal_size_min          0.025
_refine_diff_density_max         0.25
_refine_diff_density_min         -0.22
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   1.0748
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     154
_refine_ls_number_reflns         2699
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0666
_refine_ls_R_factor_gt           0.0527
_refine_ls_shift/su_max          0.0010571
_refine_ls_shift/su_mean         0.0000667
_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: 
 0.223 0.241 0.862E-01 
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.0791
_refine_ls_wR_factor_gt          0.0505
_refine_ls_wR_factor_ref         0.0455
_reflns_limit_h_max              12
_reflns_limit_h_min              0
_reflns_limit_k_max              19
_reflns_limit_k_min              0
_reflns_limit_l_max              30
_reflns_limit_l_min              0
_reflns_number_gt                3048
_reflns_number_total             3643
_reflns_threshold_expression     I>2.0\s(I)
_oxford_diffrn_Wilson_B_factor   3.61
_oxford_diffrn_Wilson_scale      81.88
_oxford_refine_ls_r_factor_ref   0.0450
_oxford_refine_ls_scale          0.1217(2)
_oxford_reflns_number_all        3633
_oxford_reflns_threshold_expression_ref I>0.0\s(I)
_cod_data_source_file            jp405624e_si_005.cif
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_atom_sites_solution_primary' value 'Other' changed to 'other'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      'P b c a '
_cod_original_formula_sum        'C12 H15 N3 O1 S1'
_cod_database_code               1512256
_iucr_refine_instruction_details_constraints
;
BLOCK SCALE X'S, U'S 
RIDE N   (   6,X'S) H   (  61,X'S) 
RIDE C   (   8,X'S) H   (  81,X'S) 
RIDE C   (   9,X'S) H   (  91,X'S) 
RIDE C   (  10,X'S) H   ( 101,X'S) 
RIDE C   (  12,X'S) H   ( 121,X'S) 
RIDE C   (  13,X'S) H   ( 132,X'S) H   ( 131,X'S) H   ( 133,X'S) 
RIDE C   (  14,X'S) H   ( 141,X'S) H   ( 142,X'S) 
RIDE C   (  15,X'S) H   ( 151,X'S) 
RIDE O   (  16,X'S) H   ( 161,X'S) 
RIDE C   (  17,X'S) H   ( 173,X'S) H   ( 172,X'S) H   ( 171,X'S) 
END                                                                             
;
_iucr_refine_instruction_details_restraints
;
NO 
REM   HREST   START (DO NOT REMOVE THIS LINE) 
REM   HREST   END (DO NOT REMOVE THIS LINE) 
END                                                                             
;