5,5’-Bistriazoles as axially chiral, multidentate ligands: Synthesis, configurational stability and catalytic application of their scandium(III) complexes
Etayo, Pablo; Escudero, Eduardo Carmelo; Pericas, Miquel A.; Catal. Sci. Technol.  (2017) –; doi:10.1039/C7CY01518F

data_1547459
_publ_section_title
;
 5,5&#x2019;-Bistriazoles as axially chiral, multidentate ligands:
 Synthesis, configurational stability and catalytic application of their
 scandium(III) complexes
;
_journal_name_full               'Catal. Sci. Technol.'
_journal_paper_doi               10.1039/C7CY01518F
_journal_year                    2017
_chemical_formula_sum            'C18 H16 N2 O2'
_chemical_formula_weight         292.33
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2016-12-20 deposited with the CCDC.
2017-09-25 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 101.069(3)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   15.7795(13)
_cell_length_b                   8.7261(8)
_cell_length_c                   21.0431(19)
_cell_measurement_reflns_used    9491
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.52
_cell_measurement_theta_min      2.68
_cell_volume                     2843.6(4)
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 512
_diffrn_detector_type            '4K CCD area detector APEX II'
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.974
_diffrn_measurement_device_type  'APEX DUO Kappa 4-axis goniometer'
_diffrn_measurement_method
;
 Fullsphere data collection, phi and omega scans
;
_diffrn_measurement_specimen_support 'magnetic support with MicroMount'
_diffrn_radiation_monochromator  'Quazar MX Multilayer Optics'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_unetI/netI     0.0566
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.974
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            3911
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.974
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.785
_diffrn_reflns_theta_min         2.631
_diffrn_source                   'Microfocus source E025 IuS'
_diffrn_source_current           0.6
_diffrn_source_power             50
_diffrn_source_size              '0.2 mm x 0.2 mm fine focus'
_diffrn_source_type              'Bruker APEX DUO'
_exptl_absorpt_coefficient_mu    0.090
_exptl_absorpt_correction_T_max  0.995
_exptl_absorpt_correction_T_min  0.765
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
 TWINABS Version 2008/0 Bruker-Nonius
 Blessing, Acta Cryst. (1995) A51 33-38
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.366
_exptl_crystal_description       block
_exptl_crystal_F_000             1232
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.298
_refine_diff_density_min         -0.293
_refine_diff_density_rms         0.062
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     204
_refine_ls_number_reflns         3911
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.0699
_refine_ls_R_factor_gt           0.0537
_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^)+(0.0790P)^2^+1.0546P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1419
_refine_ls_wR_factor_ref         0.1530
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3089
_reflns_number_total             3911
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7cy01518f2.cif
_cod_data_source_block           mo_PEMP440_3_15
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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.

'_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 
;
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               1547459
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.982
_shelx_estimated_absorpt_t_max   0.995
_shelx_res_checksum              34018