#------------------------------------------------------------------------------
#$Date: 2012-02-03 17:16:24 +0000 (Fri, 03 Feb 2012) $
#$Revision: 32112 $
#$URL: svn://www.crystallography.net/cod/cif/2/00/20/2002078.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_2002078
loop_
_publ_author_name
'Jansen, M.'
'L\"offelholz, J.'
_publ_section_title
;Structure of
 3,5-dimethyl-2,2,4,4,6,6-hexakis(methylamino)-1-oxa-3,5-diaza-2,4,6-trisilacyclohexane
;
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              120
_journal_page_last               122
_journal_volume                  49
_journal_year                    1993
_chemical_formula_sum            'C8 H30 N8 O Si3'
_chemical_formula_weight         338.6
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_H-M   'P -1'
_cell_angle_alpha                113.00(7)
_cell_angle_beta                 99.63(7)
_cell_angle_gamma                104.39(6)
_cell_formula_units_Z            4
_cell_length_a                   8.984(6)
_cell_length_b                   14.90(2)
_cell_length_c                   16.56(2)
_cell_volume                     1888(4)
_diffrn_radiation_type           Mo
_diffrn_radiation_wavelength     0.71069
_exptl_absorpt_coefficient_mu    0.253
_exptl_crystal_density_diffrn    1.1914
_exptl_crystal_F_000             736
_[local]_cod_data_source_file    bx0583.cif
_[local]_cod_data_source_block   bx0583_structure_1_of_1
_[local]_cod_chemical_formula_sum_orig 'C8 H30 N8 O1 Si3'
_cod_database_code               2002078
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Si(11) .4714(2) .34160(10) .42610(10) .0460(8)
Si(12) .5372(2) .36780(10) .62340(10) .0463(8)
Si(13) .5016(2) .15870(10) .46610(10) .0517(9)
O(1) .4876(5) .3892(3) .5355(2) .0542(19)
N(11) .5565(6) .2478(3) .5776(3) .053(3)
N(12) .4726(6) .2189(3) .3975(3) .058(3)
N(13) .3023(6) .3454(4) .3653(3) .057(3)
N(14) .6200(6) .4106(4) .3999(4) .067(3)
N(15) .3974(6) .3844(4) .6824(3) .059(3)
N(16) .7084(6) .4537(4) .7020(3) .061(3)
N(17) .6422(6) .1000(4) .4410(4) .073(3)
N(18) .3429(7) .0556(4) .4429(4) .076(3)
C(11) .6066(9) .2106(5) .6472(4) .086(5)
C(12) .4456(10) .1565(5) .2975(4) .100(5)
C(13) .1412(8) .2909(5) .3665(5) .088(5)
C(14) .7863(9) .4177(6) .4242(6) .111(7)
C(15) .2247(8) .3504(5) .6373(4) .078(5)
C(16) .8708(8) .4523(5) .6956(5) .095(5)
C(17) .8042(9) .1553(6) .4465(6) .121(4)
C(18) .1907(10) .0603(6) .4537(7) .124(6)
Si(21) .6299(2) -.29530(10) -.07950(10) .0570(8)
Si(22) .6954(2) -.32640(10) .09360(10) .0585(10)
Si(23) .6876(3) -.11380(10) .11000(10) .0635(10)
O(2) .6738(5) -.3465(6) -.0121(2) .058(2)
N(21) .6319(6) -.1764(4) -.0070(3) .065(3)
N(22) .7140(7) -.1991(3) .1513(3) .067(3)
N(23) .7602(7) -.2978(4) -.1451(3) .072(3)
N(24) .4537(7) -.3616(5) -.1591(4) .094(4)
N(25) .8542(7) -.3589(5) .1300(4) .090(4)
N(26) .5410(6) -.4039(4) .1106(3) .061(3)
N(27) .5455(8) -.0615(4) .1476(4) .090(4)
N(28) .8523(8) -.0066(4) .1545(4) .097(4)
C(21) .6063(10) -.1098(5) -.0539(5) .107(6)
C(22) .7656(11) -.1568(5) .2539(4) .113(5)
C(23) .9356(10) -.2619(7) -.1041(5) 120E1(6)
C(24) .2993(9) -.3561(7) -.1438(5) .124(6)
C(25) 1.0090(11) -.3283(9) .1140(4) .120(6)
C(26) .3792(8) -.3942(5) .0982(5) .076(4)
C(27) .3760(10) -.1176(6) .1233(6) .118(6)
C(28) 1.0092(11) -.0115(7) .1460(7) .116(6)
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
Si(11) O(1) 1.632(5)
Si(11) N(12) 1.705(6)
Si(11) N(13) 1.703(6)
Si(11) N(14) 1.700(7)
Si(12) O(1) 1.624(5)
Si(12) N(11) 1.713(6)
Si(12) N(15) 1.723(6)
Si(12) N(16) 1.659(5)
Si(13) N(11) 1.694(5)
Si(13) N(12) 1.724(6)
Si(13) N(17) 1.725(7)
Si(13) N(18) 1.676(6)
N(11) C(11) 1.514(10)
N(12) C(12) 1.489(8)
N(13) C(13) 1.481(9)
N(14) C(14) 1.446(10)
N(15) C(15) 1.465(8)
N(16) C(16) 1.486(10)
N(17) C(17) 1.452(10)
N(18) C(18) 1.423(11)
Si(21) O(2) 1.629(5)
Si(21) N(21) 1.702(6)
Si(21) N(23) 1.722(7)
Si(21) N(24) 1.651(6)
Si(22) O(2) 1.625(5)
Si(22) N(22) 1.707(6)
Si(22) N(25) 1.708(8)
Si(22) N(26) 1.711(6)
Si(23) N(21) 1.704(6)
Si(23) N(22) 1.707(7)
Si(23) N(27) 1.734(8)
Si(23) N(28) 1.681(6)
N(21) C(21) 1.514(12)
N(22) C(22) 1.502(8)
N(23) C(23) 1.473(10)
N(24) C(24) 1.467(11)
N(25) C(25) 1.455(13)
N(26) C(26) 1.485(10)
N(27) C(27) 1.442(10)
N(28) C(28) 1.456(13)
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
O(1) Si(11) N(14) 114.3(5)
O(1) Si(11) N(12) 103.6(5)
N(12) Si(11) N(14) 111.6(5)
N(13) Si(11) 0.1(1) .111.5(5)
N(13) Si(11) N(12) 113.6(5)
N(13) Si(11) N(14) 102.7(5)
O(1) Si(12) N(11) 104.4(4)
N(15) Si(12) O(1) 108.1(5)
N(15) Si(12) N(11) 118.4(6)
N(15) Si(12) N(16) 102.7(5)
N(16) Si(12) O(1) 114.4(6)
N(16) Si(12) N(11) 109.3(5)
N(11) Si(13) N(18) 110.9(5)
N(11) Si(13) N(12) 108.9(5)
N(12) Si(13) N(18) 114.3(5)
N(17) Si(13) N(18) 100.4(5)
N(17) Si(13) N(12) 109.7(5)
N(17) Si(13) N(11) 112.6(5)
Si(11) O(1) Si(12) 141.0(6)
Si(12) N(11) Si(13) 129.2(2)
Si(13) N(11) C(11) 115.5(6)
Si(12) N(11) C(11) 114.7(6)
Si(11) N(12) Si(13) 130.0(5)
Si(13) N(12) C(12) 116.8(7)
Si(11) N(12) C(12) 113.3(7)
Si(11) N(13) C(13) 120.7(7)
Si(11) N(14) C(14) 124.3(7)
Si(12) N(15) C(15) 123.5(6)
Si(12) N(16) C(16) 124.5(6)
Si(13) N(17) C(17) 123.6(8)
Si(13) N(18) C(18) 124.5(8)
O(2) Si(21) N(21) 104.1(5)
O(2) Si(21) N(23) 109.8(5)
O(2) Si(21) N(24) 114.7(6)
N(21) Si(21) N(24) 110.0(6)
N(23) Si(21) N(24) 101.8(5)
N(23) Si(21) N(21) 116.9(6)
O(2) Si(22) N(25) 109.6(5)
O(2) Si(22) N(22) 104.2(5)
N(22) Si(22) N(25) 115.8(5)
N(26) Si(22) N(25) 102.1(6)
N(26) Si(22) N(22) 110.4(5)
N(26) Si(22) O(2) 115.3(5)
N(21) Si(23) N(28) 112.5(5)
N(22) Si(23) N(28) 111.7(5)
N(22) Si(23) N(21) 108.9(5)
N(27) Si(23) N(21) 110.6(5)
N(27) Si(23) N(22) 111.7(5)
N(27) Si(23) N(28) 101.4(5)
Si(21) O(2) Si(22) 140.7(6)
Si(21) N(21) Si(23) 130.3(6)
Si(21) N(21) C(21) 113.8(6)
Si(23) N(21) C(21) 115.1(6)
Si(22) N(22) C(22) 113.8(7)
Si)22) N(22) Si(23) 129.9(5)
Si(23) N(22) C(22) 116.3(7)
Si(21) N(23) C(23) 121.8(6)
Si(21) N(24) C(24) 124.6(6)
Si(22) N(25) C(25) 123.6(8)
Si(22) N(26) C(26) 121.8(7)
Si(23) N(27) C(27) 126.1(7)
Si(23) N(28) C(28) 122.2(8)