Coordination of 2,2'-Bipyridyl and 1,10-Phenanthroline to Yttrium and Lanthanum Complexes Based on a Scorpionate Ligand
Dmitrii Roitershtein; Ângela Domingos; Laura C. J. Pereira; José R. Ascenso; Noémia Marques; Inorganic Chemistry 42 (2003) 7666–7673; doi:10.1021/ic034838+

data_4327482
_publ_section_title
;
 Coordination of 2,2'-Bipyridyl and 1,10-Phenanthroline to Yttrium and
 Lanthanum Complexes Based on a Scorpionate Ligand
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              7666
_journal_page_last               7673
_journal_paper_doi               10.1021/ic034838+
_journal_volume                  42
_journal_year                    2003
_chemical_formula_sum            'C28 H32 B Cl4 N8 Y'
_chemical_formula_weight         722.14
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 95.248(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.3735(8)
_cell_length_b                   18.5836(10)
_cell_length_c                   16.7130(9)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      10.7
_cell_measurement_theta_min      7.5
_cell_volume                     3208.4(3)
_computing_cell_refinement       'CAD4 software(Enraf-Nonius,1989)'
_computing_data_collection       'CAD4 software(Enraf-Nonius,1989)'
_computing_data_reduction        process-MolEN(Fair,1990)
_computing_molecular_graphics    'ORTEP-3 (Farrugia,1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  CAD4-Enraf-Nonius
_diffrn_measurement_method       \w/2\qscans
_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  0.0705
_diffrn_reflns_av_sigmaI/netI    0.1488
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       0
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            7197
_diffrn_reflns_theta_full        26.98
_diffrn_reflns_theta_max         26.98
_diffrn_reflns_theta_min         1.64
_diffrn_standards_decay_%        none
_diffrn_standards_interval_time  60
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    2.184
_exptl_absorpt_correction_T_max  0.9999
_exptl_absorpt_correction_T_min  0.7572
_exptl_absorpt_correction_type   'empirical via \y-scan North et al(1968)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.495
_exptl_crystal_description       irregular-prism
_exptl_crystal_F_000             1472
_exptl_crystal_size_max          0.34
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.492
_refine_diff_density_min         -0.466
_refine_diff_density_rms         0.114
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.102
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     379
_refine_ls_number_reflns         6956
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.102
_refine_ls_R_factor_all          0.1953
_refine_ls_R_factor_gt           0.0869
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0130P)^2^+11.9477P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1094
_refine_ls_wR_factor_ref         0.1504
_reflns_number_gt                3440
_reflns_number_total             6956
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic0348382Bsi20030717_055026_2.cif
_cod_data_source_block           ytpphen
_cod_database_code               4327482