#------------------------------------------------------------------------------
#$Date: 2016-02-16 22:30:59 +0200 (Tue, 16 Feb 2016) $
#$Revision: 176467 $
#$URL: svn://www.crystallography.net/cod/cif/4/07/72/4077269.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_4077269
loop_
_publ_author_name
'Schmidt, Joseph A. R.'
'Chmura, Stephen A.'
'Arnold, John'
_publ_section_title
;
 Alkyl and Alkylidene Tantalum−Lithium Complexes Supported by an
 Anionic Triazacyclononane Ligand
;
_journal_issue                   6
_journal_name_full               Organometallics
_journal_page_first              1062
_journal_paper_doi               10.1021/om0010621
_journal_volume                  20
_journal_year                    2001
_chemical_formula_moiety         'C32 H64 Li N4 Si2 Ta '
_chemical_formula_sum            'C32 H64 Li N4 Si2 Ta'
_chemical_formula_weight         748.94
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_audit_creation_date             'Fri Jan 26 14:18:22 2001'
_audit_creation_method           'by teXsan'
_cell_angle_alpha                90
_cell_angle_beta                 103.789(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.572(1)
_cell_length_b                   18.131(2)
_cell_length_c                   20.524(2)
_cell_measurement_reflns_used    2045
_cell_measurement_temperature    154.2
_cell_measurement_theta_max      45.0
_cell_measurement_theta_min      3.0
_cell_volume                     3820.7(7)
_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      154.2
_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  0.1132
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            15722
_diffrn_reflns_theta_max         23.27
_diffrn_reflns_theta_min         1.5
_exptl_absorpt_coefficient_mu    2.960
_exptl_absorpt_correction_T_max  0.923
_exptl_absorpt_correction_T_min  0.797
_exptl_absorpt_correction_type   psi-scan
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.302
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1552.00
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.03
_refine_diff_density_max         1.63
_refine_diff_density_min         -1.16
_refine_ls_extinction_coef       0.00000
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_obs   1.780
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     159
_refine_ls_number_reflns         2030
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.169
_refine_ls_R_factor_obs          0.0614
_refine_ls_shift/esd_max         0.0000
_refine_ls_structure_factor_coef F
_refine_ls_weighting_scheme      sigma
_refine_ls_wR_factor_obs         0.0894
_reflns_number_observed          2030
_reflns_number_total             5684
_reflns_observed_criterion       I>3.00sigma
_cod_data_source_file            om0010621.cif
_cod_data_source_block           (MeSiCH2)(ArN=)Ta(CHSiMe3)(iPr2-TACN)Li
_cod_original_cell_volume        3820.6(7)
_cod_original_sg_symbol_H-M      'P 21/c     '
_cod_original_formula_sum        'C32 H64 Li N4 Si2 Ta '
_cod_database_code               4077269
loop_
_symmetry_equiv_pos_as_xyz
'   +x,   +y,   +z'
'   -x,1/2+y,1/2-z'
'   -x,   -y,   -z'
'   +x,1/2-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) 0.6528(2) 0.23845(7) 0.38065(8) 0.0210(4) Uij
Si(1) 0.334(1) 0.1724(6) 0.3026(6) 0.035(4) Uij
Si(2) 0.821(1) 0.4017(5) 0.4011(6) 0.029(4) Uij
N(1) 0.627(2) 0.235(1) 0.461(1) 0.021(6) Uij
N(2) 0.815(2) 0.182(1) 0.370(1) 0.023(8) Uij
N(3) 0.788(3) 0.019(1) 0.377(1) 0.027(8) Uij
N(4) 0.776(2) 0.085(1) 0.249(1) 0.017(7) Uij
C(1) 0.518(3) 0.189(2) 0.315(2) 0.024(9) Uij
C(2) 0.291(4) 0.136(2) 0.381(2) 0.05(1) Uij
C(3) 0.232(3) 0.258(2) 0.275(2) 0.05(1) Uij
C(4) 0.257(4) 0.104(2) 0.235(2) 0.07(1) Uij
C(5) 0.678(3) 0.357(2) 0.356(2) 0.03(1) Uij
C(6) 0.792(4) 0.491(2) 0.437(2) 0.04(1) Uij
C(7) 0.913(3) 0.344(2) 0.474(2) 0.028(10) Uij
C(8) 0.938(4) 0.420(2) 0.343(2) 0.06(1) Uij
C(9) 0.583(2) 0.233(1) 0.5234(8) 0.035 Uij
C(10) 0.464(2) 0.266(1) 0.5241(8) 0.035 Uij
C(11) 0.418(2) 0.265(1) 0.582(1) 0.035 Uij
C(12) 0.492(2) 0.231(1) 0.6402(8) 0.035 Uij
C(13) 0.611(2) 0.198(1) 0.6395(9) 0.035 Uij
C(14) 0.656(2) 0.199(1) 0.581(1) 0.035 Uij
C(15) 0.375(4) 0.312(2) 0.462(2) 0.05(1) Uij
C(16) 0.441(4) 0.389(2) 0.461(2) 0.07(1) Uij
C(17) 0.235(4) 0.318(2) 0.459(2) 0.06(1) Uij
C(18) 0.793(4) 0.164(2) 0.585(2) 0.04(1) Uij
C(19) 0.902(3) 0.205(2) 0.632(2) 0.04(1) Uij
C(20) 0.786(4) 0.081(2) 0.603(2) 0.05(1) Uij
C(21) 0.909(3) 0.135(2) 0.420(2) 0.026(10) Uij
C(22) 0.852(4) 0.064(2) 0.436(2) 0.04(1) Uij
C(23) 0.872(3) -0.008(2) 0.335(2) 0.021(9) Uij
C(24) 0.828(4) 0.007(2) 0.263(2) 0.05(1) Uij
C(25) 0.889(3) 0.138(2) 0.268(2) 0.028(10) Uij
C(26) 0.854(3) 0.203(2) 0.308(2) 0.03(1) Uij
C(27) 0.712(4) -0.043(2) 0.394(2) 0.07(1) Uij
C(28) 0.785(4) -0.093(2) 0.450(2) 0.06(1) Uij
C(29) 0.581(5) -0.017(3) 0.409(2) 0.09(2) Uij
C(30) 0.703(4) 0.095(2) 0.181(2) 0.04(1) Uij
C(31) 0.569(4) 0.062(2) 0.171(2) 0.05(1) Uij
C(32) 0.778(4) 0.073(2) 0.128(2) 0.06(1) Uij
Li(1) 0.662(5) 0.098(3) 0.318(3) 0.02(1) Uij
H(1) 0.520 0.214 0.275 0.028 Uij
H(2) 0.241 0.093 0.371 0.054 Uij
H(3) 0.241 0.173 0.397 0.054 Uij
H(4) 0.368 0.127 0.414 0.054 Uij
H(5) 0.277 0.300 0.296 0.066 Uij
H(6) 0.151 0.253 0.287 0.066 Uij
H(7) 0.217 0.263 0.228 0.066 Uij
H(8) 0.168 0.099 0.234 0.075 Uij
H(9) 0.267 0.122 0.193 0.075 Uij
H(10) 0.301 0.058 0.244 0.075 Uij
H(11) 0.679 0.359 0.310 0.040 Uij
H(12) 0.607 0.383 0.364 0.040 Uij
H(13) 0.724 0.516 0.407 0.045 Uij
H(14) 0.767 0.483 0.478 0.045 Uij
H(15) 0.869 0.520 0.445 0.045 Uij
H(16) 0.860 0.334 0.504 0.033 Uij
H(17) 0.990 0.369 0.496 0.033 Uij
H(18) 0.938 0.298 0.457 0.033 Uij
H(19) 1.019 0.439 0.368 0.065 Uij
H(20) 0.955 0.375 0.322 0.065 Uij
H(21) 0.901 0.454 0.309 0.065 Uij
H(22) 0.358 0.293 0.592 0.091 Uij
H(23) 0.492 0.236 0.686 0.091 Uij
H(24) 0.682 0.176 0.676 0.091 Uij
H(25) 0.382 0.288 0.422 0.051 Uij
H(26) 0.400 0.415 0.421 0.080 Uij
H(27) 0.434 0.417 0.499 0.080 Uij
H(28) 0.531 0.383 0.462 0.080 Uij
H(29) 0.198 0.270 0.459 0.070 Uij
H(30) 0.191 0.344 0.420 0.070 Uij
H(31) 0.222 0.344 0.497 0.070 Uij
H(32) 0.814 0.166 0.541 0.049 Uij
H(33) 0.869 0.248 0.648 0.050 Uij
H(34) 0.939 0.174 0.669 0.050 Uij
H(35) 0.968 0.218 0.610 0.050 Uij
H(36) 0.729 0.076 0.633 0.057 Uij
H(37) 0.869 0.063 0.625 0.057 Uij
H(38) 0.752 0.053 0.564 0.057 Uij
H(39) 0.939 0.162 0.460 0.031 Uij
H(40) 0.981 0.124 0.401 0.031 Uij
H(41) 0.789 0.075 0.461 0.047 Uij
H(42) 0.920 0.036 0.463 0.047 Uij
H(43) 0.955 0.016 0.350 0.023 Uij
H(44) 0.882 -0.059 0.341 0.023 Uij
H(45) 0.898 -0.001 0.242 0.057 Uij
H(46) 0.759 -0.027 0.245 0.057 Uij
H(47) 0.910 0.156 0.228 0.035 Uij
H(48) 0.961 0.112 0.295 0.035 Uij
H(49) 0.783 0.228 0.280 0.039 Uij
H(50) 0.927 0.234 0.319 0.039 Uij
H(51) 0.690 -0.072 0.356 0.081 Uij
H(52) 0.863 -0.112 0.438 0.074 Uij
H(53) 0.733 -0.133 0.456 0.074 Uij
H(54) 0.813 -0.066 0.491 0.074 Uij
H(55) 0.531 -0.060 0.416 0.099 Uij
H(56) 0.595 0.013 0.447 0.099 Uij
H(57) 0.531 0.009 0.371 0.099 Uij
H(58) 0.686 0.147 0.175 0.045 Uij
H(59) 0.577 0.009 0.171 0.065 Uij
H(60) 0.530 0.076 0.206 0.065 Uij
H(61) 0.515 0.077 0.129 0.065 Uij
H(62) 0.852 0.106 0.133 0.074 Uij
H(63) 0.812 0.024 0.138 0.074 Uij
H(64) 0.726 0.076 0.085 0.074 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
Si 0 8 0.082 0.070 'International Tables'
N 0 16 0.006 0.003 'International Tables'
H 0 256 0.000 0.000 'International Tables'
C 0 128 0.003 0.002 'International Tables'
Ta 0 4 -0.705 6.523 'International Tables'
Li 0 4 0.000 0.000 '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
N(1) Ta(1) N(2) 113(1) yes
N(1) Ta(1) C(1) 112(1) yes
N(1) Ta(1) C(5) 108(1) yes
N(1) Ta(1) Li(1) 114(1) yes
N(2) Ta(1) C(1) 100(1) yes
N(2) Ta(1) C(5) 108(1) yes
N(2) Ta(1) Li(1) 52(1) yes
C(1) Ta(1) C(5) 113(1) yes
C(1) Ta(1) Li(1) 51(1) yes
C(5) Ta(1) Li(1) 137(1) yes
C(1) Si(1) C(2) 112(1) yes
C(1) Si(1) C(3) 113(1) yes
C(1) Si(1) C(4) 116(1) yes
C(2) Si(1) C(3) 107(1) yes
C(2) Si(1) C(4) 104(1) yes
C(3) Si(1) C(4) 101(1) yes
C(5) Si(2) C(6) 114(1) yes
C(5) Si(2) C(7) 111(1) yes
C(5) Si(2) C(8) 110(1) yes
C(6) Si(2) C(7) 106(1) yes
C(6) Si(2) C(8) 106(1) yes
C(7) Si(2) C(8) 107(1) yes
Ta(1) N(1) C(9) 170(1) yes
Ta(1) N(2) C(21) 130(2) yes
Ta(1) N(2) C(26) 111(1) yes
Ta(1) N(2) Li(1) 82(1) yes
C(21) N(2) C(26) 116(2) yes
C(21) N(2) Li(1) 102(2) yes
C(26) N(2) Li(1) 94(2) yes
C(22) N(3) C(23) 116(2) yes
C(22) N(3) C(27) 112(2) yes
C(22) N(3) Li(1) 100(2) yes
C(23) N(3) C(27) 110(2) yes
C(23) N(3) Li(1) 105(2) yes
C(27) N(3) Li(1) 110(2) yes
C(24) N(4) C(25) 108(2) yes
C(24) N(4) C(30) 112(2) yes
C(24) N(4) Li(1) 102(2) yes
C(25) N(4) C(30) 112(2) yes
C(25) N(4) Li(1) 107(2) yes
C(30) N(4) Li(1) 112(2) yes
Ta(1) C(1) Si(1) 135(1) yes
Ta(1) C(1) Li(1) 86(1) yes
Si(1) C(1) Li(1) 123(2) yes
Ta(1) C(5) Si(2) 116(1) yes
C(16) C(15) C(17) 111(3) yes
C(16) C(15) C(10) 106(2) yes
C(17) C(15) C(10) 117(3) yes
C(19) C(18) C(20) 113(2) yes
C(19) C(18) C(14) 112(2) yes
C(20) C(18) C(14) 107(2) yes
N(2) C(21) C(22) 113(2) yes
N(3) C(22) C(21) 114(3) yes
N(3) C(23) C(24) 116(2) yes
N(4) C(24) C(23) 111(2) yes
N(4) C(25) C(26) 110(2) yes
N(2) C(26) C(25) 114(2) yes
N(3) C(27) C(28) 115(3) yes
N(3) C(27) C(29) 112(3) yes
C(28) C(27) C(29) 110(3) yes
N(4) C(30) C(31) 110(3) yes
N(4) C(30) C(32) 113(3) yes
C(31) C(30) C(32) 115(3) yes
Ta(1) Li(1) N(2) 45(1) yes
Ta(1) Li(1) N(3) 115(2) yes
Ta(1) Li(1) N(4) 119(2) yes
Ta(1) Li(1) C(1) 42(1) yes
N(2) Li(1) N(3) 84(1) yes
N(2) Li(1) N(4) 86(2) yes
N(2) Li(1) C(1) 85(2) yes
N(3) Li(1) N(4) 85(2) yes
N(3) Li(1) C(1) 147(3) yes
N(4) Li(1) C(1) 124(2) yes
N(1) C(9) C(10) 118(1) yes
N(1) C(9) C(14) 121(1) yes
C(10) C(9) C(14) 119(1) yes
C(15) C(10) C(9) 124(2) yes
C(15) C(10) C(11) 115(2) yes
C(9) C(10) C(11) 119(1) yes
C(10) C(11) C(12) 120(1) yes
C(11) C(12) C(13) 119(1) yes
C(12) C(13) C(14) 119(1) yes
C(18) C(14) C(9) 122(2) yes
C(18) C(14) C(13) 117(2) yes
C(9) C(14) C(13) 120(1) yes
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
_geom_bond_publ_flag
Ta(1) N(1) 1.73(2) yes
Ta(1) N(2) 2.05(3) yes
Ta(1) C(1) 1.93(3) yes
Ta(1) C(5) 2.24(3) yes
Ta(1) Li(1) 2.86(5) yes
Si(1) C(1) 1.93(4) yes
Si(1) C(2) 1.89(4) yes
Si(1) C(3) 1.89(4) yes
Si(1) C(4) 1.90(4) yes
Si(2) C(5) 1.77(3) yes
Si(2) C(6) 1.84(4) yes
Si(2) C(7) 1.89(3) yes
Si(2) C(8) 1.93(5) yes
N(1) C(9) 1.47(3) yes
N(2) C(21) 1.51(4) yes
N(2) C(26) 1.48(5) yes
N(2) Li(1) 2.29(6) yes
N(3) C(22) 1.49(4) yes
N(3) C(23) 1.45(5) yes
N(3) C(27) 1.47(5) yes
N(3) Li(1) 2.14(6) yes
N(4) C(24) 1.53(4) yes
N(4) C(25) 1.50(4) yes
N(4) C(30) 1.43(4) yes
N(4) Li(1) 2.09(7) yes
C(1) Li(1) 2.23(6) yes
C(15) C(16) 1.56(6) yes
C(15) C(17) 1.47(6) yes
C(15) C(10) 1.63(4) yes
C(18) C(19) 1.52(5) yes
C(18) C(20) 1.57(5) yes
C(18) C(14) 1.56(4) yes
C(21) C(22) 1.49(5) yes
C(23) C(24) 1.46(5) yes
C(25) C(26) 1.53(5) yes
C(27) C(28) 1.52(5) yes
C(27) C(29) 1.55(7) yes
C(30) C(31) 1.51(6) yes
C(30) C(32) 1.54(6) yes
C(9) C(10) 1.39(3) yes
C(9) C(14) 1.39(3) yes
C(10) C(11) 1.39(3) yes
C(11) C(12) 1.39(3) yes
C(12) C(13) 1.39(3) yes
C(13) C(14) 1.39(3) yes
