High-temperature phase transitions, switchable dielectric behaviors and barocaloric effects in three new organic molecule-based crystals
Li, Rui-Xia; Zhou, Lin; Shi, Ping-Ping; Zheng, Xuan; Gao, Ji-Xing; Ye, Qiong; Fu, Da-Wei; New Journal of Chemistry 43 (2019) 154–; doi:10.1039/C8NJ03845G

data_7057958
_publ_section_title
;
 High-temperature phase transitions, switchable dielectric behaviors and
 barocaloric effects in three new organic molecule-based crystals
;
_journal_issue                   1
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              154
_journal_paper_doi               10.1039/C8NJ03845G
_journal_volume                  43
_journal_year                    2019
_chemical_formula_moiety         'C6 H2 N3 O7,C8 H18 P'
_chemical_formula_sum            'C14 H20 N3 O7 P'
_chemical_formula_weight         373.30
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_cell_setting           monoclinic
_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
;
2018-07-25 deposited with the CCDC.
2018-11-12 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 98.55(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.300(3)
_cell_length_b                   19.943(4)
_cell_length_c                   7.3103(15)
_cell_measurement_reflns_used    2239
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      25.00
_cell_measurement_theta_min      3.00
_cell_volume                     1773.3(7)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Rigaku, SCXmini'
_diffrn_measurement_method       '\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  0.0440
_diffrn_reflns_av_sigmaI/netI    0.0405
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            9960
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.00
_exptl_absorpt_coefficient_mu    0.196
_exptl_absorpt_correction_T_max  0.962
_exptl_absorpt_correction_T_min  0.958
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.398
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       strip
_exptl_crystal_F_000             784
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.500
_refine_diff_density_min         -0.253
_refine_diff_density_rms         0.064
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.051
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     247
_refine_ls_number_reflns         3117
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.051
_refine_ls_R_factor_all          0.1030
_refine_ls_R_factor_gt           0.0775
_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^)+(0.1392P)^2^+0.8942P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2229
_refine_ls_wR_factor_ref         0.2455
_reflns_number_gt                2239
_reflns_number_total             3125
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c8nj03845g2.cif
_cod_data_source_block           3-298K
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' according to
/home/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 4973 2017-02-22 13:04:09Z antanas 

 Adding full bibliography for 7057955--7057958.cif.
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7057958