Synthesis of a Crystalline Molecular Complex of Y2+, [(18-crown-6)K][(C5H4SiMe3)3Y]
Matthew R. MacDonald; Joseph W. Ziller; William J. Evans; Journal of the American Chemical Society 133 (2011) 15914–15917; doi:10.1021/ja207151y

data_4106941
_publ_contact_author
; 
Professor William J. Evans
Department of Chemistry
1102 Natural Sciences II
University of California, Irvine
Irvine, CA 92697-2025
;
_publ_contact_author_email       wevans@uci.edu
_publ_contact_author_fax         '1  949 824 2210'
_publ_contact_author_phone       '1  949 824 5174'
_publ_section_title
;
 Synthesis of a Crystalline Molecular Complex of Y2+,
 [(18-crown-6)K][(C5H4SiMe3)3Y]
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              15914
_journal_page_last               15917
_journal_paper_doi               10.1021/ja207151y
_journal_volume                  133
_journal_year                    2011
_chemical_formula_sum            'C24 H39 Si3 Y'
_chemical_formula_weight         500.73
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXTL
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   8.2062(3)
_cell_length_b                   22.2585(7)
_cell_length_c                   28.7399(9)
_cell_measurement_reflns_used    9979
_cell_measurement_temperature    93(2)
_cell_measurement_theta_max      28.71
_cell_measurement_theta_min      2.74
_cell_volume                     5249.6(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      93(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.965
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0330
_diffrn_reflns_av_sigmaI/netI    0.0198
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       38
_diffrn_reflns_limit_l_min       -38
_diffrn_reflns_number            59312
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         28.84
_diffrn_reflns_theta_min         1.83
_exptl_absorpt_coefficient_mu    2.367
_exptl_absorpt_correction_T_max  0.7299
_exptl_absorpt_correction_T_min  0.4635
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'Bruker SADABS'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.267
_exptl_crystal_density_meas      ?
_exptl_crystal_description       block
_exptl_crystal_F_000             2112
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.605
_refine_diff_density_min         -0.219
_refine_diff_density_rms         0.054
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.030
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     409
_refine_ls_number_reflns         6636
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.030
_refine_ls_R_factor_all          0.0341
_refine_ls_R_factor_gt           0.0236
_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^)+(0.0275P)^2^+2.1829P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0527
_refine_ls_wR_factor_ref         0.0561
_reflns_number_gt                5563
_reflns_number_total             6636
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja207151y_si_002_2.cif
_cod_data_source_block           mrm21
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_database_code               4106941