Yttrium Complexes Supported by Linked Bis(amide) Ligand: Synthesis, Structure, and Catalytic Activity in the Ring-Opening Polymerization of Cyclic Esters
Tatyana V. Mahrova; Georgy K. Fukin; Anton V. Cherkasov; Alexander A. Trifonov; Noureddine Ajellal; Jean-François Carpentier; Inorganic Chemistry 48 (2009) 4258–4266; doi:10.1021/ic802427f

data_4302090
_publ_contact_author             G.K.Fukin
_publ_contact_author_email       gera@iomc.ras.ru
_publ_section_title
;
Yttrium Complexes Supported by Linked Bis(amide) Ligand: Synthesis,
Structure, and Catalytic Activity in the Ring-Opening Polymerization of
Cyclic Esters
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              4258
_journal_page_last               4266
_journal_paper_doi               10.1021/ic802427f
_journal_volume                  48
_journal_year                    2009
_chemical_formula_sum            'C40 H67 N2 O4 Y'
_chemical_formula_weight         728.87
_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                 95.0310(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.1204(4)
_cell_length_b                   16.7843(5)
_cell_length_c                   17.0290(5)
_cell_measurement_reflns_used    900
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30
_cell_measurement_theta_min      2
_cell_volume                     4020.3(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  '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  0.0318
_diffrn_reflns_av_sigmaI/netI    0.0277
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            34291
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.69
_exptl_absorpt_coefficient_mu    1.490
_exptl_absorpt_correction_T_max  0.6805
_exptl_absorpt_correction_T_min  0.5171
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2008)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.204
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1568
_exptl_crystal_size_max          0.51
_exptl_crystal_size_mid          0.36
_exptl_crystal_size_min          0.28
_refine_diff_density_max         1.157
_refine_diff_density_min         -1.157
_refine_diff_density_rms         0.073
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.070
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     403
_refine_ls_number_reflns         7885
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0579
_refine_ls_R_factor_gt           0.0443
_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^)+(0.0532P)^2^+5.0520P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1071
_refine_ls_wR_factor_ref         0.1119
_reflns_number_gt                6365
_reflns_number_total             7885
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic802427f_si_002_2.cif
_cod_data_source_block           ynocl1m
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4302090