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_7226239
_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
2pyridinecarboxaldehyde2(4chlorophenyl)hydrazone
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 108.118(5)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   29.3899(18)
_cell_length_b                   3.8643(3)
_cell_length_c                   20.0344(13)
_cell_measurement_reflns_used    2974
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      74.39
_cell_measurement_theta_min      3.16
_cell_volume                     2162.5(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    'SHELXT-2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker-AXS D8 Venture PHOTON-II'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0681
_diffrn_reflns_av_unetI/netI     0.0498
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       36
_diffrn_reflns_limit_h_min       -36
_diffrn_reflns_limit_k_max       4
_diffrn_reflns_limit_k_min       -4
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            24609
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         74.741
_diffrn_reflns_theta_min         3.164
_diffrn_source                   'ImuS micro-focus'
_exptl_absorpt_coefficient_mu    2.902
_exptl_absorpt_correction_T_max  0.6566
_exptl_absorpt_correction_T_min  0.5476
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS-2014 (Sheldrick, 2014)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.423
_exptl_crystal_description       needle
_exptl_crystal_F_000             960
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: ethanol'
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.040
_exptl_crystal_size_min          0.010
_refine_diff_density_max         0.571
_refine_diff_density_min         -0.383
_refine_diff_density_rms         0.140
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.101
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     297
_refine_ls_number_reflns         4410
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.101
_refine_ls_R_factor_all          0.0862
_refine_ls_R_factor_gt           0.0652
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0419P)^2^+3.8450P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1341
_refine_ls_wR_factor_ref         0.1456
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3376
_reflns_number_total             4410
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6ce01519k2.cif
_cod_data_source_block           16008a1CNNb
_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               7226239
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.595
_shelx_estimated_absorpt_t_max   0.972
_shelx_res_checksum              14995