Synthesis, Characterization, and Polymerization Activity of [Bis(4,4'-bis(neophyldimethylsilylmethyl)-2,2'-bipyridyl)copper(I)] + CuBr2- and Implications for Copper(I) Catalyst Structures in Atom Transfer Radical Polymerization
Amy T. Levy; Marilyn M. Olmstead; Timothy E. Patten; Inorganic Chemistry 39 (2000) 1628–1634; doi:10.1021/ic990567k

data_4320856
_publ_contact_author
; Dr. Timothy E. Patten
  Department of Chemistry
  University of California
  One Shields Ave.
  Davis, CA 95616-5295
  USA
;
_publ_contact_author_email       patten@indigo.ucdavis.edu
_publ_contact_author_fax         530-752-8995
_publ_contact_author_phone       530-754-6181
_publ_section_title
;
 Synthesis, Characterization, and Polymerization Activity of
 [Bis(4,4'-bis(neophyldimethylsilylmethyl)-2,2'-bipyridyl)copper(I)] +
 CuBr2- and Implications for Copper(I) Catalyst Structures in Atom
 Transfer Radical Polymerization
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              1628
_journal_page_last               1634
_journal_paper_doi               10.1021/ic990567k
_journal_volume                  39
_journal_year                    2000
_chemical_formula_sum            'C36 H48 N2 Si2'
_chemical_formula_weight         564.94
_chemical_name_common            dNEObipy
_chemical_name_systematic
; 
 4,4'-di-(neophyldimethylsilylmethyl)-2,2'-bipyridine 
;
_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                 98.420(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   7.9701(9)
_cell_length_b                   22.075(2)
_cell_length_c                   9.3996(11)
_cell_measurement_reflns_used    35
_cell_measurement_temperature    130(2)
_cell_measurement_theta_max      35.9
_cell_measurement_theta_min      6.2
_cell_volume                     1635.9(3)
_computing_cell_refinement       'Siemens P3'
_computing_data_collection       'Siemens P3'
_computing_data_reduction        'Siemens XDISK'
_computing_molecular_graphics    'SHELXTL Plus, 5.03, XP (Sheldrick, 1994)'
_computing_publication_material  'SHELXL-97-2, (Sheldrick, 1998)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      130(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Siemens P4'
_diffrn_measurement_method       2\q-\w
_diffrn_radiation_monochromator  'nickel filter'
_diffrn_radiation_source         'Siemens rotating anode'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0835
_diffrn_reflns_av_sigmaI/netI    0.0670
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -3
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            4888
_diffrn_reflns_theta_full        56.46
_diffrn_reflns_theta_max         56.46
_diffrn_reflns_theta_min         4.00
_diffrn_standards_decay_%        5.0
_diffrn_standards_interval_count 198
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    1.168
_exptl_absorpt_correction_T_max  0.8351
_exptl_absorpt_correction_T_min  0.7357
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
;XABS2: an empirical absorption correction program. Parkin, S.; Moezzi,
 B.; Hope, H. J. Appl. Cryst. 1995, 28, 53-56.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.147
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             612
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.193
_refine_diff_density_min         -0.346
_refine_diff_density_rms         0.049
_refine_ls_extinction_coef       0.00117
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     185
_refine_ls_number_reflns         2168
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.044
_refine_ls_R_factor_all          0.0496
_refine_ls_R_factor_gt           0.0409
_refine_ls_shift/su_max          0.007
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0273P)^2^+0.9033P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0938
_refine_ls_wR_factor_ref         0.0988
_reflns_number_gt                1883
_reflns_number_total             2168
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic990567k_3.cif
_cod_data_source_block           mn871
_cod_database_code               4320856