Synthesis and characterization of some novel tetrazole liquid crystals
Muhammad Tariq; Shahid Hameed; Ivan H. Bechtold; Adailton J. Bortoluzzi; Aloir A. Merlo; Journal of Materials Chemistry C 1 (2013) 5583–5593; doi:10.1039/C3TC30966E

data_7233499
_publ_section_title
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 Synthesis and characterization of some novel tetrazole liquid crystals
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_journal_name_full               'Journal of Materials Chemistry C'
_journal_page_first              5583
_journal_page_last               5593
_journal_paper_doi               10.1039/C3TC30966E
_journal_volume                  1
_journal_year                    2013
_chemical_formula_moiety         'C26 H34 N4 O3'
_chemical_formula_sum            'C26 H34 N4 O3'
_chemical_formula_weight         450.57
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                82.731(2)
_cell_angle_beta                 72.7700(10)
_cell_angle_gamma                76.798(2)
_cell_formula_units_Z            2
_cell_length_a                   8.8808(3)
_cell_length_b                   10.9801(3)
_cell_length_c                   13.8034(4)
_cell_measurement_reflns_used    9944
_cell_measurement_temperature    190(2)
_cell_measurement_theta_max      31.07
_cell_measurement_theta_min      2.38
_cell_volume                     1249.11(7)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'PLATON (Spek, 2009)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      190(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEX-II DUO'
_diffrn_measurement_method       '\f and \w 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  0.0207
_diffrn_reflns_av_sigmaI/netI    0.0199
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            28779
_diffrn_reflns_theta_full        31.10
_diffrn_reflns_theta_max         31.10
_diffrn_reflns_theta_min         1.91
_exptl_absorpt_coefficient_mu    0.079
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.198
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prismatic
_exptl_crystal_F_000             484
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.18
_refine_diff_density_max         1.146
_refine_diff_density_min         -0.468
_refine_diff_density_rms         0.062
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     300
_refine_ls_number_reflns         8005
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0785
_refine_ls_R_factor_gt           0.0629
_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^)+(0.1129P)^2^+0.4597P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1824
_refine_ls_wR_factor_ref         0.2006
_reflns_number_gt                6265
_reflns_number_total             8005
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            1000001.cif
_cod_data_source_block           PCOD1000001
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Triclinic' was changed to
'triclinic' in accordance with the built-in table derived from the
CIF Core dictionary named 'cif_core.dic' version 2.4.5 last updated
on 2014-11-21.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7233499