Low temperature phase transition induced biaxial negative thermal expansion of 2,4-dinitroanisole
Takahashi, Hiroki; Tamura, Rui; CrystEngComm 17 (2015) 8888–; doi:10.1039/C5CE00029G

data_7220938
_publ_section_title
;
 Low temperature phase transition induced biaxial negative thermal
 expansion of 2,4-dinitroanisole
;
_journal_issue                   46
_journal_name_full               CrystEngComm
_journal_page_first              8888
_journal_paper_doi               10.1039/C5CE00029G
_journal_volume                  17
_journal_year                    2015
_chemical_formula_sum            'C7 H6 N2 O5'
_chemical_formula_weight         198.14
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2014-12-26 deposited with the CCDC.
2015-06-08 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 91.156(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   3.957(2)
_cell_length_b                   13.735(7)
_cell_length_c                   15.454(8)
_cell_measurement_reflns_used    2000
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.0
_cell_volume                     839.7(7)
_computing_cell_refinement
;
CrystalClear-SM Expert 2.0 r4 (Rigaku/MSC, 2009)
;
_computing_data_collection
;
CrystalClear-SM Expert 2.0 r4 (Rigaku/MSC, 2009)
;
_computing_data_reduction
;
CrystalClear-SM Expert 2.0 r4 (Rigaku/MSC, 2009)
;
_computing_molecular_graphics
;
Yadokari-XG 2009 (Kabuto, 2009), ORTEP-3 (Farrugia, 1997) & Mercury (Macrae et
al., 2006)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      273(2)
_diffrn_detector                 CCD
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device
;
AFC11 (Right): Eulerian 3 circle
;
_diffrn_measurement_device_type
;
Rigaku Saturn724+
;
_diffrn_measurement_method       'profile data from \w-scans'
_diffrn_radiation_monochromator  'Graphite Monochromator'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0231
_diffrn_reflns_av_sigmaI/netI    0.0445
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            3814
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         3.25
_exptl_absorpt_coefficient_mu    0.136
_exptl_absorpt_correction_T_max  0.9733
_exptl_absorpt_correction_T_min  0.9733
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'CrystalClear (Rigaku Americas and Rigaku, 2009)'
_exptl_crystal_colour            'Pale yellow'
_exptl_crystal_density_diffrn    1.567
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Platelet
_exptl_crystal_F_000             408
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.167
_refine_diff_density_min         -0.127
_refine_diff_density_rms         0.033
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.887
_refine_ls_matrix_type           full
_refine_ls_number_parameters     189
_refine_ls_number_reflns         1904
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.887
_refine_ls_R_factor_all          0.0756
_refine_ls_R_factor_gt           0.0454
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1237
_refine_ls_wR_factor_ref         0.1522
_reflns_number_gt                1178
_reflns_number_total             1904
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c5ce00029g2.cif
_cod_data_source_block           24dnan_273K
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 3271 2015-04-21 07:52:19Z andrius 

 Adding full bibliography for 7220936--7220954.cif.
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7220938