Molecular packing preferences in “bridge-flipped” isomeric aryl-2-pyridylhydrazones and 2-pyridinecarboxaldehyde arylhydrazones
Beard, Lindsey E.; Ojala, Charles R.; Kassekert, Kara J.; Ojala, William H.; CrystEngComm 18 (2016) 7036–; doi:10.1039/C6CE01519K

data_7226238
_publ_section_title
;
 Molecular packing preferences in &#x201C;bridge-flipped&#x201D; isomeric
 aryl-2-pyridylhydrazones and 2-pyridinecarboxaldehyde arylhydrazones
;
_journal_issue                   37
_journal_name_full               CrystEngComm
_journal_page_first              7036
_journal_paper_doi               10.1039/C6CE01519K
_journal_volume                  18
_journal_year                    2016
_chemical_formula_sum            'C12 H10 Cl N3'
_chemical_formula_weight         231.68
_chemical_melting_point          458.5(15)
_chemical_name_systematic
'2-pyridinecarboxaldehyde 2-(4-chlorophenyl)hydrazone'
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2016-07-07 deposited with the CCDC.
2016-08-12 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 93.807(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.9741(17)
_cell_length_b                   4.5330(7)
_cell_length_c                   20.337(3)
_cell_measurement_reflns_used    2973
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.27
_cell_measurement_theta_min      3.36
_cell_volume                     1101.4(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics
'PLATON (Spek, 2009) Mercury (Macrae et al., 2008)'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0474
_diffrn_reflns_av_unetI/netI     0.0416
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            10461
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.298
_diffrn_reflns_theta_min         1.920
_diffrn_source                   'sealed tube'
_exptl_absorpt_coefficient_mu    0.320
_exptl_absorpt_correction_T_max  0.9281
_exptl_absorpt_correction_T_min  0.8378
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2012/1 (Sheldrick, 2012)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.397
_exptl_crystal_description       needle
_exptl_crystal_F_000             480
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: ethanol'
_exptl_crystal_size_max          0.500
_exptl_crystal_size_mid          0.060
_exptl_crystal_size_min          0.030
_refine_diff_density_max         0.208
_refine_diff_density_min         -0.268
_refine_diff_density_rms         0.048
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     148
_refine_ls_number_reflns         2466
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.028
_refine_ls_R_factor_all          0.0629
_refine_ls_R_factor_gt           0.0386
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0382P)^2^+0.2907P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0852
_refine_ls_wR_factor_ref         0.0952
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1778
_reflns_number_total             2466
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6ce01519k2.cif
_cod_data_source_block           15280a1CNNa
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '457-460 K' was changed to
'458.5(15)' - the average value was taken and precision was
estimated.

Automatic conversion script
Id: cif_fix_values 4268 2015-11-12 08:31:59Z antanas 

 Adding full bibliography for 7226237--7226244.cif.
;
_cod_database_code               7226238
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.856
_shelx_estimated_absorpt_t_max   0.990
_shelx_res_checksum              62653