Palladium(ii) induced complete conformational enrichment of the syn isomer of N,N′-bis(4-pyridylformyl)piperazine
Tripathy, Debakanta; Sahoo, Himansu S.; Ramkumar, Venkatachalam; Chand, Dillip Kumar; RSC Advances 4 (2014) 18595–; doi:10.1039/c3ra47904h

data_7235346
_publ_section_title
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 Palladium(ii) induced complete conformational enrichment of the syn
 isomer of N,N&#x2032;-bis(4-pyridylformyl)piperazine
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_journal_issue                   36
_journal_name_full               'RSC Advances'
_journal_page_first              18595
_journal_paper_doi               10.1039/c3ra47904h
_journal_volume                  4
_journal_year                    2014
_chemical_formula_moiety         'C16 H16 N4 O2 '
_chemical_formula_sum            'C16 H16 N4 O2'
_chemical_formula_weight         296.33
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 107.528(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.1945(6)
_cell_length_b                   8.2633(5)
_cell_length_c                   9.9539(6)
_cell_measurement_reflns_used    1775
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      29.44
_cell_measurement_theta_min      2.65
_cell_volume                     721.15(8)
_computing_cell_refinement       'APEXII/SAINT, Bruker,2004'
_computing_data_collection       'APEXII, Bruker,2004'
_computing_data_reduction        'SAINT PLUS/XPREP, Bruker,2004'
_computing_molecular_graphics    'ORTEP-3   (Farrugia, 1997)'
_computing_publication_material  'SHELXL-97  (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97  (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97  (Sheldrick, 2008)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.957
_diffrn_measured_fraction_theta_max 0.957
_diffrn_measurement_device_type  'Bruker APEXII CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0213
_diffrn_reflns_av_sigmaI/netI    0.0208
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            4185
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.65
_exptl_absorpt_coefficient_mu    0.094
_exptl_absorpt_correction_T_max  0.9815
_exptl_absorpt_correction_T_min  0.9695
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker,2004)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.365
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Hexagonal
_exptl_crystal_F_000             312.0
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.184
_refine_diff_density_min         -0.148
_refine_diff_density_rms         0.032
_refine_ls_extinction_coef       0.094(16)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.068
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     101
_refine_ls_number_reflns         1211
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.068
_refine_ls_R_factor_all          0.0466
_refine_ls_R_factor_gt           0.0367
_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^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1259
_refine_ls_wR_factor_ref         0.1378
_reflns_number_gt                1006
_reflns_number_total             1211
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ra47904h2.cif
_cod_data_source_block           new
_cod_depositor_comments
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The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Monoclinic' was changed to
'monoclinic' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/RSC/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
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_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7235346