On the Search for NNO-Donor Enantiopure Scorpionate Ligands and Their Coordination to Group 4 Metals
Otero, Antonio; Fernández-Baeza, Juan; Tejeda, Juan; Lara-Sánchez, Agustín; Sánchez-Molina, Margarita; Franco, Sonia; López-Solera, Isabel; Rodríguez, Ana M; Sánchez-Barba, Luis F; Morante-Zarcero, Sonia; Garcés, Andrés; Inorganic chemistry 48 (2009) 5540–5554; doi:10.1021/ic900352e

data_4338573
_publ_section_title
;
 On the Search for NNO-Donor Enantiopure Scorpionate Ligands and Their
 Coordination to Group 4 Metals
;
_journal_coden_ASTM              INOCAJ
_journal_issue                   12
_journal_name_full               'Inorganic chemistry'
_journal_page_first              5540
_journal_page_last               5554
_journal_paper_doi               10.1021/ic900352e
_journal_volume                  48
_journal_year                    2009
_chemical_formula_sum            'C19 H24 N4 O'
_chemical_formula_weight         324.42
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                65.704(2)
_cell_angle_beta                 81.085(2)
_cell_angle_gamma                70.782(2)
_cell_formula_units_Z            2
_cell_length_a                   7.3634(10)
_cell_length_b                   11.0255(15)
_cell_length_c                   12.6364(17)
_cell_measurement_reflns_used    1015
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      23.050
_cell_measurement_theta_min      2.174
_cell_volume                     882.7(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.979
_diffrn_measured_fraction_theta_max 0.979
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'omega and phi 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  0.0259
_diffrn_reflns_av_sigmaI/netI    0.0541
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            5850
_diffrn_reflns_theta_full        26.23
_diffrn_reflns_theta_max         26.23
_diffrn_reflns_theta_min         2.17
_exptl_absorpt_coefficient_mu    0.078
_exptl_absorpt_correction_T_max  0.9830
_exptl_absorpt_correction_T_min  0.9586
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.221
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             348
_exptl_crystal_size_max          0.55
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.218
_refine_diff_density_min         -0.252
_refine_diff_density_rms         0.048
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     222
_refine_ls_number_reflns         3473
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.054
_refine_ls_R_factor_all          0.1017
_refine_ls_R_factor_gt           0.0602
_refine_ls_shift/su_max          0.010
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1040P)^2^+0.0139P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1593
_refine_ls_wR_factor_ref         0.1926
_reflns_number_gt                2101
_reflns_number_total             3473
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic900352e_si_001.cif
_cod_data_source_block           4
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4338573