Dioxotungsten(VI) complexes with isoniazid-related hydrazones as (pre)catalysts for olefin epoxidation: solvent and ligand substituent effects
Vrdoljak, Visnja; Pisk, Jana; Prugovečki, Biserka; Agustin, Dominique; Novak, Predrag; Matković-Čalogović, Dubravka; RSC Adv.  (2016) –; doi:10.1039/C6RA05067K

data_7224855
_publ_section_title
;
 Dioxotungsten(VI) complexes with isoniazid-related hydrazones as
 (pre)catalysts for olefin epoxidation: solvent and ligand substituent
 effects
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C6RA05067K
_journal_year                    2016
_chemical_formula_sum            'C15 H15 N3 O5 W'
_chemical_formula_weight         501.15
_chemical_name_systematic
'ethanol-cis-dioxo-(syalicilyaldehide isonicotinylhydrazone)tungsten(VI)'
_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-2013
_audit_update_record
;
2016-02-19 deposited with the CCDC.
2016-04-05 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 97.032(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.1744(2)
_cell_length_b                   12.5034(2)
_cell_length_c                   15.3736(3)
_cell_measurement_reflns_used    7856
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      29.3299
_cell_measurement_theta_min      3.7914
_cell_volume                     1559.48(6)
_computing_cell_refinement       'CrysAlis RED (Oxford Diffraction,2010)'
_computing_data_collection       'CrysAlis CCD (Oxford Diffraction,2010)'
_computing_data_reduction        'CrysAlis RED (Oxford Diffraction,2010)'
_computing_molecular_graphics    'MERCURY (C.F. Macrae et al , 2008)'
_computing_publication_material  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      295(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.865
_diffrn_measurement_device_type  'Xcalibur CCD'
_diffrn_measurement_method       CCD
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0318
_diffrn_reflns_av_unetI/netI     0.0389
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.865
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            17068
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.865
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         29.420
_diffrn_reflns_theta_min         3.802
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    7.439
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.73981
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   multi-scan
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    2.134
_exptl_crystal_description       prism
_exptl_crystal_F_000             960
_exptl_crystal_size_max          0.56
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.856
_refine_diff_density_min         -0.605
_refine_diff_density_rms         0.095
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     221
_refine_ls_number_reflns         3735
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.937
_refine_ls_R_factor_all          0.0416
_refine_ls_R_factor_gt           0.0235
_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^)+(0.0198P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0419
_refine_ls_wR_factor_ref         0.0438
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2805
_reflns_number_total             3735
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6ra05067k2.cif
_cod_data_source_block           shelx
_cod_database_code               7224855
_shelxl_version_number           2013-4
_shelx_res_checksum              56609