#------------------------------------------------------------------------------
#$Date: 2016-02-16 22:30:59 +0200 (Tue, 16 Feb 2016) $
#$Revision: 176467 $
#$URL: svn://www.crystallography.net/cod/cif/4/11/56/4115670.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_4115670
loop_
_publ_author_name
'Joseph A. R. Schmidt'
'John Arnold'
_publ_contact_author_address
;
 Dept. of Chemistry
 University of California-Berkeley
 Berkeley, CA  94720-1460
;
_publ_contact_author_email       ' arnold@socrates.berkeley.edu '
_publ_contact_author_fax         ' (510) 643-5482 '
_publ_contact_author_name        ' John Arnold '
_publ_section_title
;
 Reactivity of a Tantalum-Lithium Alkylidene Supported by an Anionic
 Triazacyclononane Ligand
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              8424
_journal_page_last               8425
_journal_paper_doi               10.1021/ja016143i
_journal_volume                  123
_journal_year                    2001
_chemical_formula_moiety         'C33 H64 Li N4 O Si2 Ta '
_chemical_formula_sum            'C33 H64 Li N4 O Si2 Ta'
_chemical_formula_weight         776.95
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      61
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_audit_creation_date             'Sat Apr 21 16:35:27 2001'
_audit_creation_method           'by teXsan'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   17.1859(3)
_cell_length_b                   19.2859(3)
_cell_length_c                   24.3778(4)
_cell_measurement_reflns_used    8192
_cell_measurement_temperature    166.2
_cell_measurement_theta_max      45.0
_cell_measurement_theta_min      3.0
_cell_volume                     8079.9(2)
_computing_cell_refinement       'Bruker SAINT v5.04'
_computing_data_collection       'Bruker SMART v5.052d'
_computing_data_reduction        'Bruker SAINT v5.04'
_computing_publication_material  teXsan
_computing_structure_refinement  teXsan
_computing_structure_solution    SIR92
_diffrn_ambient_temperature      166.2
_diffrn_measurement_device_type  'SMART CCD'
_diffrn_measurement_method       ω-scan
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'X-ray tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.7107
_diffrn_reflns_av_R_equivalents  0.0745
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            33010
_diffrn_reflns_theta_max         23.21
_diffrn_reflns_theta_min         1.5
_exptl_absorpt_coefficient_mu    2.803
_exptl_absorpt_correction_T_max  0.72
_exptl_absorpt_correction_T_min  0.51
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'Blessing, 1995'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.277
_exptl_crystal_description       block
_exptl_crystal_F_000             3216.00
_exptl_crystal_size_max          0.170
_exptl_crystal_size_mid          0.170
_exptl_crystal_size_min          0.160
_refine_diff_density_max         0.48
_refine_diff_density_min         -0.82
_refine_ls_extinction_coef       0.00000
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_obs   0.790
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     378
_refine_ls_number_reflns         3179
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0596
_refine_ls_R_factor_obs          0.0250
_refine_ls_shift/esd_max         0.0010
_refine_ls_structure_factor_coef F
_refine_ls_weighting_scheme      sigma
_refine_ls_wR_factor_all         0.0366
_refine_ls_wR_factor_obs         0.0283
_reflns_number_observed          3179
_reflns_number_total             6371
_reflns_observed_criterion       I>3.00sigma
_cod_data_source_file            ja016143i_s2_3.cif
_cod_data_source_block           (Me3SiCH2)(ArN=)Ta(iPr2-tacn)(C(O)=CHSiMe3)_(3)
_cod_original_sg_symbol_H-M      'P b c a '
_cod_original_formula_sum        'C33 H64 Li N4 O Si2 Ta '
_cod_database_code               4115670
loop_
_symmetry_equiv_pos_as_xyz
'   +x,   +y,   +z'
'1/2+x,1/2-y,   -z'
'   -x,1/2+y,1/2-z'
'1/2-x,   -y,1/2+z'
'   -x,   -y,   -z'
'1/2-x,1/2+y,   +z'
'   +x,1/2-y,1/2+z'
'1/2+x,   +y,1/2-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_thermal_displace_type
Ta(1) 0.70946(1) 0.16267(1) 0.20738(1) 0.027 Uij
Si(1) 0.5211(1) 0.3279(1) 0.12262(8) 0.043 Uij
Si(2) 0.6698(1) 0.1935(1) 0.34900(8) 0.035 Uij
O(1) 0.6657(2) 0.2134(2) 0.1394(2) 0.034 Uij
N(1) 0.6658(3) 0.0784(3) 0.2112(2) 0.032 Uij
N(2) 0.8138(3) 0.1558(3) 0.1692(2) 0.029 Uij
N(3) 0.8435(3) 0.2511(3) 0.0733(2) 0.035 Uij
N(4) 0.7975(3) 0.1069(3) 0.0569(2) 0.038 Uij
C(1) 0.6269(4) 0.2403(4) 0.1851(3) 0.031 Uij
C(2) 0.5701(4) 0.2882(4) 0.1820(3) 0.046 Uij
C(3) 0.5726(5) 0.3112(6) 0.0563(3) 0.064 Uij
C(4) 0.5124(5) 0.4234(4) 0.1332(4) 0.062 Uij
C(5) 0.4197(4) 0.2912(4) 0.1179(3) 0.042 Uij
C(6) 0.7393(4) 0.1912(4) 0.2907(3) 0.032 Uij
C(7) 0.6186(5) 0.2782(5) 0.3508(4) 0.071 Uij
C(8) 0.7210(5) 0.1815(7) 0.4143(4) 0.077 Uij
C(9) 0.5949(5) 0.1238(5) 0.3443(4) 0.068 Uij
C(10) 0.6280(3) 0.0148(3) 0.2131(3) 0.034 Uij
C(11) 0.5552(4) 0.0060(4) 0.1862(3) 0.041 Uij
C(12) 0.5205(4) -0.0602(4) 0.1893(3) 0.044 Uij
C(13) 0.5537(4) -0.1144(4) 0.2167(3) 0.049 Uij
C(14) 0.6239(5) -0.1054(3) 0.2427(3) 0.042 Uij
C(15) 0.6625(4) -0.0410(3) 0.2418(3) 0.033 Uij
C(16) 0.5165(4) 0.0659(4) 0.1589(3) 0.051 Uij
C(17) 0.4724(8) 0.0462(7) 0.1056(5) 0.113 Uij
C(18) 0.4589(6) 0.0990(6) 0.1954(5) 0.088 Uij
C(19) 0.7410(5) -0.0332(4) 0.2699(3) 0.043 Uij
C(20) 0.7387(6) -0.0526(6) 0.3303(4) 0.067 Uij
C(21) 0.8040(4) -0.0748(4) 0.2404(3) 0.054 Uij
C(22) 0.8613(4) 0.2193(3) 0.1732(3) 0.030 Uij
C(23) 0.8998(4) 0.2440(3) 0.1199(3) 0.037 Uij
C(24) 0.8684(4) 0.2132(4) 0.0241(3) 0.043 Uij
C(25) 0.8707(5) 0.1345(4) 0.0321(3) 0.043 Uij
C(26) 0.8135(4) 0.0586(4) 0.1024(3) 0.043 Uij
C(27) 0.8548(4) 0.0923(3) 0.1511(3) 0.039 Uij
C(28) 0.8258(4) 0.3249(3) 0.0597(3) 0.047 Uij
C(29) 0.8953(5) 0.3668(4) 0.0370(3) 0.053 Uij
C(30) 0.7886(4) 0.3621(3) 0.1068(3) 0.040 Uij
C(31) 0.7419(5) 0.0788(5) 0.0145(3) 0.065 Uij
C(32) 0.7726(6) 0.0102(5) -0.0120(3) 0.065 Uij
C(33) 0.709(1) 0.121(1) -0.0208(8) 0.036(5) Uij
C(34) 0.6607(8) 0.0784(7) 0.0318(6) 0.064(4) Uij
Li(1) 0.7485(7) 0.1918(6) 0.0962(4) 0.032 Uij
H(1) 0.552 0.304 0.217 0.055 Uij
H(2) 0.572 0.264 0.049 0.077 Uij
H(3) 0.625 0.327 0.060 0.077 Uij
H(4) 0.547 0.337 0.028 0.077 Uij
H(5) 0.488 0.443 0.102 0.074 Uij
H(6) 0.482 0.432 0.165 0.074 Uij
H(7) 0.563 0.442 0.137 0.074 Uij
H(8) 0.388 0.322 0.097 0.051 Uij
H(9) 0.398 0.287 0.154 0.051 Uij
H(10) 0.421 0.247 0.101 0.051 Uij
H(11) 0.760 0.237 0.289 0.038 Uij
H(12) 0.779 0.160 0.302 0.038 Uij
H(13) 0.655 0.315 0.353 0.085 Uij
H(14) 0.589 0.284 0.318 0.085 Uij
H(15) 0.584 0.280 0.381 0.085 Uij
H(16) 0.759 0.216 0.418 0.093 Uij
H(17) 0.685 0.184 0.443 0.093 Uij
H(18) 0.745 0.137 0.414 0.093 Uij
H(19) 0.619 0.080 0.347 0.082 Uij
H(20) 0.558 0.130 0.373 0.082 Uij
H(21) 0.568 0.128 0.310 0.082 Uij
H(22) 0.472 -0.067 0.171 0.052 Uij
H(23) 0.529 -0.158 0.218 0.059 Uij
H(24) 0.646 -0.143 0.262 0.050 Uij
H(25) 0.554 0.100 0.150 0.061 Uij
H(26) 0.450 0.087 0.090 0.136 Uij
H(27) 0.506 0.025 0.082 0.136 Uij
H(28) 0.430 0.016 0.116 0.136 Uij
H(29) 0.436 0.140 0.179 0.106 Uij
H(30) 0.482 0.114 0.230 0.106 Uij
H(31) 0.416 0.069 0.204 0.106 Uij
H(32) 0.755 0.014 0.268 0.052 Uij
H(33) 0.700 -0.026 0.349 0.080 Uij
H(34) 0.727 -0.100 0.334 0.080 Uij
H(35) 0.788 -0.043 0.347 0.080 Uij
H(36) 0.793 -0.123 0.244 0.065 Uij
H(37) 0.803 -0.063 0.202 0.065 Uij
H(38) 0.853 -0.065 0.256 0.065 Uij
H(39) 0.901 0.211 0.199 0.036 Uij
H(40) 0.828 0.256 0.186 0.036 Uij
H(41) 0.923 0.288 0.126 0.044 Uij
H(42) 0.939 0.212 0.110 0.044 Uij
H(43) 0.919 0.229 0.014 0.051 Uij
H(44) 0.833 0.224 -0.005 0.051 Uij
H(45) 0.878 0.113 -0.003 0.051 Uij
H(46) 0.913 0.123 0.055 0.051 Uij
H(47) 0.765 0.040 0.115 0.051 Uij
H(48) 0.845 0.022 0.089 0.051 Uij
H(49) 0.906 0.104 0.141 0.047 Uij
H(50) 0.856 0.060 0.181 0.047 Uij
H(51) 0.788 0.324 0.031 0.057 Uij
H(52) 0.881 0.413 0.031 0.064 Uij
H(53) 0.937 0.366 0.063 0.064 Uij
H(54) 0.913 0.346 0.004 0.064 Uij
H(55) 0.826 0.369 0.135 0.048 Uij
H(56) 0.770 0.406 0.095 0.048 Uij
H(57) 0.746 0.335 0.120 0.048 Uij
H(58) 0.744 -0.003 -0.044 0.079 Uij
H(59) 0.827 0.014 -0.022 0.079 Uij
H(60) 0.770 -0.029 0.013 0.079 Uij
loop_
_atom_type_symbol
_atom_type_oxidation_number
_atom_type_number_in_cell
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C 0 264 0.003 0.002 'International Tables'
H 0 512 0.000 0.000 'International Tables'
N 0 32 0.006 0.003 'International Tables'
Si 0 16 0.082 0.070 'International Tables'
Ta 0 8 -0.705 6.523 'International Tables'
Li 0 8 0.000 0.000 'International Tables'
O 0 8 0.011 0.006 'International Tables'
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
_geom_angle_publ_flag
O(1) Ta(1) N(1) 108.5(2) yes
O(1) Ta(1) N(2) 89.2(2) yes
O(1) Ta(1) C(1) 38.8(2) yes
O(1) Ta(1) C(6) 135.9(2) yes
O(1) Ta(1) Li(1) 39.6(3) yes
N(1) Ta(1) N(2) 109.6(2) yes
N(1) Ta(1) C(1) 111.7(2) yes
N(1) Ta(1) C(6) 106.4(3) yes
N(1) Ta(1) Li(1) 109.1(3) yes
N(2) Ta(1) C(1) 121.2(2) yes
N(2) Ta(1) C(6) 103.8(2) yes
N(2) Ta(1) Li(1) 50.7(3) yes
C(1) Ta(1) C(6) 102.6(3) yes
C(1) Ta(1) Li(1) 77.0(3) yes
C(6) Ta(1) Li(1) 141.8(3) yes
C(2) Si(1) C(3) 113.1(4) yes
C(2) Si(1) C(4) 109.8(4) yes
C(2) Si(1) C(5) 108.3(4) yes
C(3) Si(1) C(4) 109.1(5) yes
C(3) Si(1) C(5) 108.7(4) yes
C(4) Si(1) C(5) 107.7(4) yes
C(6) Si(2) C(7) 110.1(4) yes
C(6) Si(2) C(8) 110.7(4) yes
C(6) Si(2) C(9) 112.3(4) yes
C(7) Si(2) C(8) 108.5(6) yes
C(7) Si(2) C(9) 108.0(4) yes
C(8) Si(2) C(9) 107.1(5) yes
Ta(1) O(1) C(1) 73.2(4) yes
Ta(1) O(1) Li(1) 94.1(4) yes
C(1) O(1) Li(1) 156.9(5) yes
Ta(1) N(1) C(10) 176.8(4) yes
Ta(1) N(2) C(22) 113.9(4) yes
Ta(1) N(2) C(27) 127.8(4) yes
Ta(1) N(2) Li(1) 84.2(4) yes
C(22) N(2) C(27) 116.3(4) yes
C(22) N(2) Li(1) 94.2(5) yes
C(27) N(2) Li(1) 105.1(5) yes
C(23) N(3) C(24) 112.6(5) yes
C(23) N(3) C(28) 112.8(5) yes
C(23) N(3) Li(1) 104.8(5) yes
C(24) N(3) C(28) 110.6(5) yes
C(24) N(3) Li(1) 100.1(5) yes
C(28) N(3) Li(1) 115.2(5) yes
C(25) N(4) C(26) 111.9(6) yes
C(25) N(4) C(31) 112.5(6) yes
C(25) N(4) Li(1) 104.3(5) yes
C(26) N(4) C(31) 114.0(6) yes
C(26) N(4) Li(1) 103.1(5) yes
C(31) N(4) Li(1) 110.1(6) yes
Ta(1) C(1) O(1) 68.0(3) yes
Ta(1) C(1) C(2) 168.0(6) yes
O(1) C(1) C(2) 123.8(7) yes
Si(1) C(2) C(1) 131.3(6) yes
Ta(1) C(6) Si(2) 124.8(3) yes
N(1) C(10) C(11) 120.0(6) yes
N(1) C(10) C(15) 119.5(6) yes
C(11) C(10) C(15) 120.5(6) yes
C(10) C(11) C(12) 117.0(7) yes
C(10) C(11) C(16) 120.5(6) yes
C(12) C(11) C(16) 122.5(6) yes
C(11) C(12) C(13) 122.9(7) yes
C(12) C(13) C(14) 119.7(7) yes
C(13) C(14) C(15) 121.3(7) yes
C(10) C(15) C(14) 118.7(6) yes
C(10) C(15) C(19) 121.3(6) yes
C(14) C(15) C(19) 119.9(7) yes
C(11) C(16) C(17) 113.8(8) yes
C(11) C(16) C(18) 111.5(7) yes
C(17) C(16) C(18) 106.5(8) yes
C(15) C(19) C(20) 112.8(7) yes
C(15) C(19) C(21) 111.4(6) yes
C(20) C(19) C(21) 110.2(7) yes
N(2) C(22) C(23) 116.2(6) yes
N(3) C(23) C(22) 113.0(5) yes
N(3) C(24) C(25) 113.4(6) yes
N(4) C(25) C(24) 112.5(6) yes
N(4) C(26) C(27) 113.7(6) yes
N(2) C(27) C(26) 111.3(5) yes
N(3) C(28) C(29) 114.9(6) yes
N(3) C(28) C(30) 111.9(6) yes
C(29) C(28) C(30) 110.7(6) yes
N(4) C(31) C(32) 112.0(7) yes
N(4) C(31) C(33) 119(1) yes
N(4) C(31) C(34) 114.1(8) yes
C(32) C(31) C(33) 113(1) yes
C(32) C(31) C(34) 116.0(9) yes
C(33) C(31) C(34) 77(1) yes
C(31) C(33) C(34) 55.1(9) yes
C(31) C(34) C(33) 47.4(8) yes
Ta(1) Li(1) O(1) 46.4(3) yes
Ta(1) Li(1) N(2) 45.0(2) yes
Ta(1) Li(1) N(3) 123.5(5) yes
Ta(1) Li(1) N(4) 112.3(5) yes
O(1) Li(1) N(2) 90.2(5) yes
O(1) Li(1) N(3) 130.3(7) yes
O(1) Li(1) N(4) 139.9(7) yes
N(2) Li(1) N(3) 89.4(5) yes
N(2) Li(1) N(4) 85.3(5) yes
N(3) Li(1) N(4) 89.6(5) yes
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
_geom_bond_publ_flag
Ta(1) O(1) 2.067(4) yes
Ta(1) N(1) 1.793(5) yes
Ta(1) N(2) 2.025(5) yes
Ta(1) C(1) 2.134(7) yes
Ta(1) C(6) 2.166(7) yes
Ta(1) Li(1) 2.85(1) yes
Si(1) C(2) 1.842(8) yes
Si(1) C(3) 1.870(9) yes
Si(1) C(4) 1.866(9) yes
Si(1) C(5) 1.885(8) yes
Si(2) C(6) 1.856(7) yes
Si(2) C(7) 1.856(9) yes
Si(2) C(8) 1.834(9) yes
Si(2) C(9) 1.864(9) yes
O(1) C(1) 1.398(8) yes
O(1) Li(1) 1.82(1) yes
N(1) C(10) 1.389(8) yes
N(2) C(22) 1.475(8) yes
N(2) C(27) 1.480(8) yes
N(2) Li(1) 2.22(1) yes
N(3) C(23) 1.499(9) yes
N(3) C(24) 1.471(9) yes
N(3) C(28) 1.492(8) yes
N(3) Li(1) 2.07(1) yes
N(4) C(25) 1.496(9) yes
N(4) C(26) 1.474(9) yes
N(4) C(31) 1.508(9) yes
N(4) Li(1) 2.08(1) yes
C(1) C(2) 1.345(9) yes
C(10) C(11) 1.423(9) yes
C(10) C(15) 1.414(9) yes
C(11) C(12) 1.41(1) yes
C(11) C(16) 1.49(1) yes
C(12) C(13) 1.37(1) yes
C(13) C(14) 1.374(10) yes
C(14) C(15) 1.408(9) yes
C(15) C(19) 1.520(10) yes
C(16) C(17) 1.55(1) yes
C(16) C(18) 1.48(1) yes
C(19) C(20) 1.52(1) yes
C(19) C(21) 1.53(1) yes
C(22) C(23) 1.534(9) yes
C(24) C(25) 1.53(1) yes
C(26) C(27) 1.527(10) yes
C(28) C(29) 1.55(1) yes
C(28) C(30) 1.497(10) yes
C(31) C(32) 1.56(1) yes
C(31) C(33) 1.31(2) yes
C(31) C(34) 1.46(1) yes
C(33) C(34) 1.74(2) yes
