#------------------------------------------------------------------------------
#$Date: 2009-04-21 17:31:11 +0300 (Tue, 21 Apr 2009) $
#$Revision: 665 $
#$URL: file:///home/coder/svn-repositories/cod/cif/2/2001848.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided by IUCr Journals, http://journals.iucr.org/.
#
# The file may be used within the scientific community so long as
# proper attribution is given to the journal article from which the
# data were obtained.
#
data_2001848
loop_
_publ_author_name
'Zhang, H.'
'Jia, L.'
'Hosmane, N. S.'
_publ_section_title
;
 The first zwitterionic and bent-sandwiched hafnacarborane
 4',5,5',6-Li(THF)-1,1'-<i>commo</i>-Hf(THF)Cl[2-(SiMe~3~)-3-(Me)-2,3-C~2~B~4~H~4~]~2~
;
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              453
_journal_page_last               456
_journal_volume                  49
_journal_year                    1993
_chemical_formula_moiety         'C20 H48 B8 Cl1 Hf1 Li1 O2 Si2'
_chemical_formula_sum            'C20 H48 B8 Cl1 Hf1 Li1 O2 Si2'
_chemical_formula_weight         684.1
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_cell_angle_alpha                90
_cell_angle_beta                 90.41(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   16.821(5)
_cell_length_b                   16.277(5)
_cell_length_c                   12.131(5)
_cell_volume                     3321(2)
_diffrn_radiation_type           Mo
_diffrn_radiation_wavelength     0.71073
_exptl_absorpt_coefficient_mu    3.474
_exptl_crystal_density_diffrn    1.368
_exptl_crystal_F_000             1376
_[local]_cod_data_source_file    cr1005.cif
_[local]_cod_data_source_block   cr1005_structure_1_of_1
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Hf .27690(10) .05310(10) .13010(10) .0570(10)
Cl .3484(2) -.0564(2) .0362(3) .0700(10)
Li .1257(17) .1077(18) .297(3) .115(13)
Si(1) .2338(3) .0377(3) -.1969(4) .093(2)
Si(2) .3019(3) -.1518(3) .3168(3) .075(2)
C(1) .2020(8) .0516(7) -.0489(12) .068(5)
C(2) .1627(8) -.0079(9) .0240(12) .072(6)
B(3) .1279(9) .0342(11) .1276(17) .083(8)
B(4) .1481(9) .1311(10) .1094(16) .081(7)
B(5) .1952(9) .1391(9) -.0046(15) .072(6)
B(6) .1087(12) .0800(10) -.0005(17) .091(8)
C(7) .1432(10) -.0978(8) -.0101(13) .098(7)
C(8) .1588(12) .0828(13) -.2893(17) .164(12)
C(9) .3254(11) .0957(11) -.2175(13) .128(9)
C(10) .2548(15) -.0701(10) -.2364(15) .152(12)
C(11) .3077(8) -.0388(9) .2954(10) .072(5)
C(12) .3770(8) .0147(9) .2784(10) .069(5)
B(13) .3598(11) .1096(11) .2909(13) .085(7)
B(14) .2624(11) .1117(11) .3243(15) .085(7)
B(15) .2335(10) .0168(11) .3242(13) .074(7)
B(16) .3222(14) .0426(12) .3898(15) .097(9)
C(17) .4597(8) -.0204(10) .2785(12) .092(6)
C(18) .3794(9) -.2089(8) .2476(12) .092(7)
C(19) .3095(11) -.1690(10) .4674(10) .110(8)
C(20) .2048(9) -.1849(9) .2627(13) .096(7)
O(21) .3604(5) .1435(5) .0617(7) .070(4)
C(22) .4446(8) .1250(9) .0398(12) .084(6)
C(23) .4762(9) .2065(11) .0035(14) .101(7)
C(24) .4286(9) .2688(10) .0592(14) .100(7)
C(25) .3506(8) .2339(8) .0703(14) .090(7)
O(26) .0431(7) .1315(8) .3870(10) .123(5)
C(27) .0510(17) .171(2) .487(2) .240(14)
C(28) -.0249(15) .1958(15) .530(2) .161(9)
C(29) -.081(2) .152(2) .461(3) .251(15)
C(30) -.0326(18) .158(3) .364(3) .31(2)
H(3) .0788 .0001 .1803 ?
H(4) .1058 .1619 .1430 ?
H(5) .2126 .1995 -.0526 ?
H(6) .0492 .0614 -.0479 ?
H(7a) .0939 -.0975 -.0504 ?
H(7b) .1846 -.1190 -.0562 ?
H(7c) .1381 -.1319 .0540 ?
H(8a) .1096 .0535 -.2814 ?
H(8b) .1504 .1400 -.2740 ?
H(8c) .1778 .0766 -.3633 ?
H(9a) .3173 .1517 -.1955 ?
H(9b) .3670 .0719 -.1732 ?
H(9c) .3404 .0940 -.2937 ?
H(10a) .2067 -.1010 -.2267 ?
H(10b) .2698 -.0715 -.3126 ?
H(10c) .2964 -.0937 -.1921 ?
H(13) .4130 .1587 .3057 ?
H(14) .2223 .1616 .3603 ?
H(15) .1755 -.0149 .3580 ?
H(16) .3341 .0314 .4756 ?
H(17a) .4780 -.0291 .3527 ?
H(17b) .4616 -.0713 .2386 ?
H(17c) .4932 .0193 .2432 ?
H(18a) .3770 -.1985 .1697 ?
H(18b) .4306 -.1930 .2758 ?
H(18c) .3710 -.2663 .2611 ?
H(19a) .3070 -.2273 .4786 ?
H(19b) .3592 -.1484 .4955 ?
H(19c) .2665 -.1429 .5054 ?
H(20a) .2013 -.1729 .1853 ?
H(20b) .1994 -.2430 .2739 ?
H(20c) .1631 -.1567 .3008 ?
H(22a) .4496 .0829 -.0152 ?
H(22b) .4718 .1081 .1058 ?
H(23a) .4673 .2124 -.0743 ?
H(23b) .5318 .2130 .0191 ?
H(24a) .4263 .3206 .0212 ?
H(24b) .4516 .2776 .1308 ?
H(25a) .3275 .2480 .1399 ?
H(25b) .3164 .2533 .0121 ?
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
Hf Cl 2.437(3)
Hf C(2) 2.510(14)
Hf B(4) 2.522(15)
Hf C(11) 2.552(13)
Hf B(13) 2.560(17)
Hf B(15) 2.540(16)
C(1) C(2) 1.471(19)
C(1) B(6) 1.74(2)
C(2) B(6) 1.72(2)
B(3) B(4) 1.63(2)
B(4) B(5) 1.60(3)
B(5) B(6) 1.75(2)
C(11) B(15) 1.58(2)
C(12) B(13) 1.58(2)
C(12) C(17) 1.503(19)
B(13) B(16) 1.74(3)
B(14) B(16) 1.70(3)
Li B(3) 2.38(4)
Li B(14) 2.32(3)
Li O(26) 1.82(3)
Si(1) C(8) 1.84(2)
Si(1) C(10) 1.854(17)
Si(2) C(18) 1.811(15)
Si(2) C(20) 1.838(15)
O(21) C(25) 1.485(15)
C(23) C(24) 1.46(2)
Hf C(1) 2.503(14)
Hf B(3) 2.526(16)
Hf B(5) 2.547(16)
Hf C(12) 2.534(13)
Hf B(14) 2.555(18)
Hf O(21) 2.199(8)
C(1) B(5) 1.527(19)
C(2) B(3) 1.55(2)
C(2) C(7) 1.56(2)
B(3) B(6) 1.75(3)
B(4) B(6) 1.70(3)
C(11) C(12) 1.471(19)
C(11) B(16) 1.77(2)
C(12) B(16) 1.70(2)
B(13) B(14) 1.69(3)
B(14) B(15) 1.62(3)
B(15) B(16) 1.74(3)
Li B(4) 2.34(4)
Li B(15) 2.36(3)
Si(1) C(1) 1.891(15)
Si(1) C(9) 1.826(19)
Si(2) C(11) 1.860(14)
Si(2) C(19) 1.851(13)
O(21) C(22) 1.473(16)
C(22) C(23) 1.50(2)
C(24) C(25) 1.44(2)
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
B(3) Li B(14) 96.7(12)
B(3) Li B(15) 77.9(11)
C(2) C(1) B(5) 111.6(12)
B(5) C(1) B(6) 64.2(10)
C(1) C(2) B(6) 65.6(10)
C(1) C(2) C(7) 123.7(12)
B(6) C(2) C(7) 128.9(12)
C(2) B(3) B(6) 62.4(11)
B(3) B(4) B(5) 107.5(13)
B(5) B(4) B(6) 63.7(11)
C(1) B(5) B(6) 63.9(10)
C(1) B(6) C(2) 50.3(8)
C(2) B(6) B(3) 53.0(9)
C(2) B(6) B(4) 94.0(12)
C(1) B(6) B(5) 52.0(9)
B(3) B(6) B(5) 96.4(13)
C(12) C(11) B(15) 108.6(12)
B(15) C(11) B(16) 62.2(11)
C(11) C(12) B(16) 67.2(10)
C(11) C(12) C(17) 120.6(13)
B(16) C(12) C(17) 127.4(12)
C(12) B(13) B(16) 61.4(10)
B(13) B(14) B(15) 105.8(13)
B(15) B(14) B(16) 63.0(11)
C(11) B(15) B(16) 64.1(10)
C(11) B(16) C(12) 50.1(8)
C(12) B(16) B(13) 54.5(10)
C(12) B(16) B(14) 97.3(12)
C(11) B(16) B(15) 53.7(9)
B(13) B(16) B(15) 98.6(12)
Cl Hf O(21) 89.7(2)
B(4) Li B(14) 88.2(12)
B(4) Li B(15) 96.3(12)
C(2) C(1) B(6) 64.1(10)
C(1) C(2) B(3) 111.7(12)
B(3) C(2) B(6) 64.5(11)
B(3) C(2) C(7) 123.5(12)
C(2) B(3) B(4) 103.7(13)
B(4) B(3) B(6) 60.3(11)
B(3) B(4) B(6) 63.4(11)
C(1) B(5) B(4) 105.4(12)
B(4) B(5) B(6) 60.9(10)
C(1) B(6) B(3) 91.4(11)
C(1) B(6) B(4) 92.7(12)
B(3) B(6) B(4) 56.3(10)
C(2) B(6) B(5) 91.4(11)
B(4) B(6) B(5) 55.4(10)
C(12) C(11) B(16) 62.7(10)
C(11) C(12) B(13) 114.8(12)
B(13) C(12) B(16) 64.0(10)
B(13) C(12) C(17) 122.8(13)
C(12) B(13) B(14) 102.8(13)
B(14) B(13) B(16) 59.4(11)
B(13) B(14) B(16) 61.9(11)
C(11) B(15) B(14) 108.0(13)
B(14) B(15) B(16) 60.8(11)
C(11) B(16) B(13) 94.1(11)
C(11) B(16) B(14) 96.6(12)
B(13) B(16) B(14) 58.7(11)
C(12) B(16) B(15) 92.(14)
B(14) B(16) B(15) 56.2(11)