A thermal expansion investigation of the melting point anomaly in trihalomesitylenes
Viswanadha G. Saraswatula; Binoy K. Saha; Chem.Commun. 51 (2015) 9829–; doi:10.1039/C5cc03033A

data_7117259
_publ_section_title
;
 A thermal expansion investigation of the melting point anomaly in
 trihalomesitylenes
;
_journal_name_full               Chem.Commun.
_journal_page_first              9829
_journal_paper_doi               10.1039/C5cc03033A
_journal_volume                  51
_journal_year                    2015
_chemical_formula_moiety         'C9 H9 Br3'
_chemical_formula_sum            'C9 H9 Br3'
_chemical_formula_weight         356.89
_chemical_name_systematic
;
tribromomesitylene 
;
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     iterative
_atom_sites_solution_secondary   difmap
_audit_creation_date             2013-09-28
_audit_creation_method
;
  Olex2 1.2
  (compiled Dec  5 2012 16:17:34, GUI svn.r4385)
;
_audit_update_record
;
2015-04-06 deposited with the CCDC.
2015-05-07 downloaded from the CCDC.
;
_cell_angle_alpha                119.828(8)
_cell_angle_beta                 106.926(8)
_cell_angle_gamma                95.170(7)
_cell_formula_units_Z            2
_cell_length_a                   7.6628(7)
_cell_length_b                   9.0535(7)
_cell_length_c                   9.0675(7)
_cell_measurement_reflns_used    1752
_cell_measurement_temperature    118(2)
_cell_measurement_theta_max      29.1355
_cell_measurement_theta_min      4.1346
_cell_volume                     500.73(10)
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.21 (release 14-08-2012 CrysAlis171 .NET)
(compiled Sep 14 2012,17:21:16)
;
_computing_data_collection
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.21 (release 14-08-2012 CrysAlis171 .NET)
(compiled Sep 14 2012,17:21:16)
;
_computing_data_reduction
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.21 (release 14-08-2012 CrysAlis171 .NET)
(compiled Sep 14 2012,17:21:16)
;
_computing_molecular_graphics
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_publication_material
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_structure_refinement
;
SHELXL, G.M. Sheldrick, Acta Cryst.
(2008). A64, 112-122
;
_computing_structure_solution
;
olex2.solve (L.J. Bourhis, O.V. Dolomanov, R.J. Gildea, J.A.K. Howard,
H. Puschmann, in preparation, 2011)
;
_diffrn_ambient_temperature      118(2)
_diffrn_detector_area_resol_mean 15.9821
_diffrn_measured_fraction_theta_full 0.9922
_diffrn_measured_fraction_theta_max 0.9366
_diffrn_measurement_details
;
  1 omega  -38.00    8.00   1.0000    4.0000
omega____ theta____ kappa____ phi______ frames
    -      -17.3397  -19.0000   60.0000 46

  2 omega  -80.00   -1.00   1.0000    4.0000
omega____ theta____ kappa____ phi______ frames
    -      -17.3397  -57.0000    0.0000 79

  3 omega  -15.00   19.00   1.0000    4.0000
omega____ theta____ kappa____ phi______ frames
    -      -17.3397  -99.0000  -90.0000 34

  4 omega  -21.00   24.00   1.0000    4.0000
omega____ theta____ kappa____ phi______ frames
    -      -17.3397  -99.0000   60.0000 45

  5 omega  -42.00   15.00   1.0000    4.0000
omega____ theta____ kappa____ phi______ frames
    -      -17.3397   37.0000  -60.0000 57

  6 omega   27.00   55.00   1.0000    4.0000
omega____ theta____ kappa____ phi______ frames
    -      -17.3397   37.0000  -60.0000 28

  7 omega  -74.00   -6.00   1.0000    4.0000
omega____ theta____ kappa____ phi______ frames
    -      -17.3397  -57.0000  150.0000 68

  8 omega  -83.00  -53.00   1.0000    4.0000
omega____ theta____ kappa____ phi______ frames
    -      -17.3397  -19.0000   60.0000 30

  9 omega  -47.00   53.00   1.0000    4.0000
omega____ theta____ kappa____ phi______ frames
    -      -17.3397   77.0000   90.0000 100
;
_diffrn_measurement_device_type  'Xcalibur, Eos'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_UB_11      -0.0510595000
_diffrn_orient_matrix_UB_12      0.0459680000
_diffrn_orient_matrix_UB_13      0.0538463000
_diffrn_orient_matrix_UB_21      0.0777172000
_diffrn_orient_matrix_UB_22      0.0779265000
_diffrn_orient_matrix_UB_23      0.0538214000
_diffrn_orient_matrix_UB_31      -0.0391142000
_diffrn_orient_matrix_UB_32      0.0260879000
_diffrn_orient_matrix_UB_33      -0.0615051000
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.7107
_diffrn_reflns_av_R_equivalents  0.0350
_diffrn_reflns_av_unetI/netI     0.0530
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            4813
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         29.20
_diffrn_reflns_theta_min         4.14
_diffrn_source                   'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    12.026
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.25984
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.21 (release 14-08-2012 CrysAlis171 .NET)
(compiled Sep 14 2012,17:21:16)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    2.367
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             336
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.4
_exptl_crystal_size_min          0.2
_refine_diff_density_max         1.159
_refine_diff_density_min         -1.649
_refine_diff_density_rms         0.215
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     112
_refine_ls_number_reflns         2296
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0473
_refine_ls_R_factor_gt           0.0369
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0430P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0833
_refine_ls_wR_factor_ref         0.0885
_reflns_number_gt                1940
_reflns_number_total             2296
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5cc03033a2.cif
_cod_data_source_block           tbm-118K
_cod_original_cell_volume        500.73(7)
_cod_database_code               7117259