data_global
_journal_name_full               Chem.Commun.

_journal_coden_Cambridge         0182
_journal_volume                  ?
_journal_year                    ?
_journal_page_first              ?

loop_
_publ_author_name
'C. Brinker'
'Darren R. Dunphy'
'Nanguo Liu'
'Mark A. Rodriguez'
'Sarany Singer'

_publ_contact_author_name        'Prof C. Jeffrey Brinker'
_publ_contact_author_address     
;
Chemical and Nuclear Engineering
The University of New Mexico
1001 University Blvd. SE
Suite-100
Albuquerque
New Mexico
87106
UNITED STATES OF AMERICA
;

_publ_contact_author_email       CJBRINK@SANDIA.GOV

_publ_section_title              
;
Synthesis and Crystallographic structure of a Novel
photoresponsive Azobenzene-containing organosilane
;

data_enc024s
_database_code_CSD               192903

_audit_creation_method           SHELXL-97
_chemical_name_systematic        
; 
? 
;
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         ?
_chemical_formula_sum            'C22 H32 N4 O4 Si'
_chemical_formula_weight         444.61

loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0033 0.0016 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
H H 0.0000 0.0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
N N 0.0061 0.0033 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
O O 0.0106 0.0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Si Si 0.0817 0.0704 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'

_symmetry_cell_setting           Monoclinic
_symmetry_space_group_name_H-M   P2(1)/n

loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x+1/2, y+1/2, -z+1/2'
'-x, -y, -z'
'x-1/2, -y-1/2, z-1/2'

_cell_length_a                   15.430(3)
_cell_length_b                   9.2471(17)
_cell_length_c                   18.504(3)
_cell_angle_alpha                90.00
_cell_angle_beta                 114.501(4)
_cell_angle_gamma                90.00
_cell_volume                     2402.5(8)
_cell_formula_units_Z            4
_cell_measurement_temperature    168(2)
_cell_measurement_reflns_used    700
_cell_measurement_theta_min      2.24
_cell_measurement_theta_max      22.08

_exptl_crystal_description       needle
_exptl_crystal_colour            orange
_exptl_crystal_size_max          .05
_exptl_crystal_size_mid          ?
_exptl_crystal_size_min          .4
_exptl_crystal_density_meas      ?
_exptl_crystal_density_diffrn    1.229
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             952
_exptl_absorpt_coefficient_mu    0.132
_exptl_absorpt_correction_type   SADABS
_exptl_absorpt_correction_T_min  0.98
_exptl_absorpt_correction_T_max  0.91
_exptl_absorpt_process_details   ?

_exptl_special_details           
; 
? 
;

_diffrn_ambient_temperature      168(2)
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_type           MoK\a
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_monochromator  graphite
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_detector_area_resol_mean ?
_diffrn_standards_number         ?
_diffrn_standards_interval_count ?
_diffrn_standards_interval_time  ?
_diffrn_standards_decay_%        ?
_diffrn_reflns_number            12976
_diffrn_reflns_av_R_equivalents  0.0832
_diffrn_reflns_av_sigmaI/netI    0.0705
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_theta_min         2.24
_diffrn_reflns_theta_max         22.08
_reflns_number_total             2959
_reflns_number_gt                1859
_reflns_threshold_expression     >2sigma(I)

_computing_data_collection       'Bruker SMART'
_computing_cell_refinement       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'

_refine_special_details          
; 
Refinement of F^2^ against ALL reflections.  The weighted R-factor wR and 
goodness of fit S are based on F^2^, conventional R-factors R are based 
on F, with F set to zero for negative F^2^. The threshold expression of 
F^2^ > 2sigma(F^2^) is used only for calculating R-factors(gt) etc. and is 
not relevant to the choice of reflections for refinement.  R-factors based 
on F^2^ are statistically about twice as large as those based on F, and R- 
factors based on ALL data will be even larger. 
;

_refine_ls_structure_factor_coef Fsqd
_refine_ls_matrix_type           full
_refine_ls_weighting_scheme      calc
_refine_ls_weighting_details     
'calc w=1/[\s^2^(Fo^2^)+(0.0813P)^2^+1.6997P] where P=(Fo^2^+2Fc^2^)/3'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_atom_sites_solution_hydrogens   geom
_refine_ls_hydrogen_treatment    mixed
_refine_ls_extinction_method     none
_refine_ls_extinction_coef       ?
_refine_ls_number_reflns         2959
_refine_ls_number_parameters     291
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.1175
_refine_ls_R_factor_gt           0.0683
_refine_ls_wR_factor_ref         0.1754
_refine_ls_wR_factor_gt          0.1500
_refine_ls_goodness_of_fit_ref   1.043
_refine_ls_restrained_S_all      1.043
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000

loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_occupancy
_atom_site_symmetry_multiplicity
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_disorder_assembly
_atom_site_disorder_group
Si1 Si 0.80848(10) 0.08623(16) 1.10772(8) 0.0462(5) Uani 1 1 d . . .
N1 N 0.5480(3) 0.0813(5) 0.3216(2) 0.0475(11) Uani 1 1 d . . .
N2 N 0.5344(3) 0.1574(4) 0.3725(2) 0.0401(10) Uani 1 1 d . . .
N3 N 0.7065(3) -0.0438(4) 0.6861(2) 0.0384(11) Uani 1 1 d . . .
N4 N 0.7920(3) -0.0413(5) 0.8204(2) 0.0413(11) Uani 1 1 d . . .
O1 O 0.7347(2) 0.1693(3) 0.75461(17) 0.0432(9) Uani 1 1 d . . .
O2 O 0.7363(3) 0.2198(4) 1.0704(2) 0.0666(11) Uani 1 1 d . . .
O3 O 0.8848(3) 0.1214(4) 1.1971(2) 0.0710(12) Uani 1 1 d . . .
O4 O 0.7490(3) -0.0505(4) 1.1136(2) 0.0795(13) Uani 1 1 d . . .
C1 C 0.6829(4) 0.2958(7) 1.1041(3) 0.0688(17) Uani 1 1 d . . .
H1A H 0.7249 0.3637 1.1450 0.083 Uiso 1 1 calc R . .
H1B H 0.6558 0.2269 1.1301 0.083 Uiso 1 1 calc R . .
C2 C 0.6051(5) 0.3770(7) 1.0417(4) 0.086(2) Uani 1 1 d . . .
H2A H 0.6322 0.4465 1.0168 0.129 Uiso 1 1 calc R . .
H2B H 0.5680 0.4289 1.0655 0.129 Uiso 1 1 calc R . .
H2C H 0.5635 0.3094 1.0014 0.129 Uiso 1 1 calc R . .
C3 C 0.9806(6) 0.1795(9) 1.2220(4) 0.111(3) Uani 1 1 d . . .
H3A H 1.0140 0.1248 1.1952 0.133 Uiso 1 1 calc R . .
H3B H 0.9762 0.2816 1.2046 0.133 Uiso 1 1 calc R . .
C4 C 1.0349(5) 0.1726(9) 1.3051(4) 0.117(3) Uani 1 1 d . . .
H4A H 1.0017 0.2252 1.3322 0.176 Uiso 1 1 calc R . .
H4B H 1.0975 0.2165 1.3186 0.176 Uiso 1 1 calc R . .
H4C H 1.0430 0.0713 1.3223 0.176 Uiso 1 1 calc R . .
C5 C 0.7647(7) -0.1432(8) 1.1719(5) 0.133(3) Uani 1 1 d . . .
H5A H 0.7537 -0.0910 1.2141 0.159 Uiso 1 1 calc R . .
H5B H 0.8331 -0.1685 1.1941 0.159 Uiso 1 1 calc R . .
C6 C 0.7137(5) -0.2731(7) 1.1581(4) 0.092(2) Uani 1 1 d . . .
H6A H 0.6454 -0.2530 1.1301 0.139 Uiso 1 1 calc R . .
H6B H 0.7262 -0.3201 1.2090 0.139 Uiso 1 1 calc R . .
H6C H 0.7337 -0.3371 1.1257 0.139 Uiso 1 1 calc R . .
C7 C 0.8654(3) 0.0582(5) 1.0392(2) 0.0405(13) Uani 1 1 d . . .
H7A H 0.8978 0.1490 1.0362 0.049 Uiso 1 1 calc R . .
H7B H 0.9151 -0.0170 1.0619 0.049 Uiso 1 1 calc R . .
C8 C 0.7982(3) 0.0127(5) 0.9541(3) 0.0397(13) Uani 1 1 d . . .
H8A H 0.7767 -0.0879 0.9549 0.048 Uiso 1 1 calc R . .
H8B H 0.7413 0.0759 0.9347 0.048 Uiso 1 1 calc R . .
C9 C 0.8461(3) 0.0223(5) 0.8975(2) 0.0382(12) Uani 1 1 d . . .
H9A H 0.8578 0.1254 0.8902 0.046 Uiso 1 1 calc R . .
H9B H 0.9088 -0.0265 0.9220 0.046 Uiso 1 1 calc R . .
C10 C 0.7432(3) 0.0374(5) 0.7544(3) 0.0344(12) Uani 1 1 d . . .
C11 C 0.6647(3) 0.0097(5) 0.6084(2) 0.0307(11) Uani 1 1 d . . .
C12 C 0.6027(3) 0.1271(5) 0.5871(3) 0.0352(12) Uani 1 1 d . . .
H12 H 0.5881 0.1758 0.6259 0.042 Uiso 1 1 calc R . .
C13 C 0.5627(3) 0.1720(5) 0.5089(3) 0.0358(12) Uani 1 1 d . . .
H13 H 0.5204 0.2521 0.4943 0.043 Uiso 1 1 calc R . .
C14 C 0.5831(3) 0.1025(5) 0.4513(3) 0.0342(12) Uani 1 1 d . . .
C15 C 0.6456(3) -0.0132(5) 0.4733(3) 0.0396(13) Uani 1 1 d . . .
H15 H 0.6606 -0.0612 0.4345 0.047 Uiso 1 1 calc R . .
C16 C 0.6863(3) -0.0591(5) 0.5513(3) 0.0361(12) Uani 1 1 d . . .
H16 H 0.7294 -0.1383 0.5659 0.043 Uiso 1 1 calc R . .
C17 C 0.4988(4) 0.1311(6) 0.2417(3) 0.0439(13) Uani 1 1 d . . .
C18 C 0.4338(4) 0.2396(6) 0.2178(3) 0.0582(15) Uani 1 1 d . . .
H18 H 0.4189 0.2911 0.2557 0.070 Uiso 1 1 calc R . .
C19 C 0.3887(4) 0.2753(8) 0.1372(4) 0.078(2) Uani 1 1 d . . .
H19 H 0.3433 0.3514 0.1202 0.094 Uiso 1 1 calc R . .
C20 C 0.4099(5) 0.2008(9) 0.0834(4) 0.080(2) Uani 1 1 d . . .
H20 H 0.3787 0.2252 0.0287 0.096 Uiso 1 1 calc R . .
C21 C 0.4753(6) 0.0916(9) 0.1064(4) 0.089(2) Uani 1 1 d . . .
H21 H 0.4901 0.0406 0.0684 0.106 Uiso 1 1 calc R . .
C22 C 0.5199(5) 0.0563(7) 0.1868(3) 0.0735(18) Uani 1 1 d . . .
H22 H 0.5653 -0.0198 0.2038 0.088 Uiso 1 1 calc R . .
H24 H 0.792(3) -0.133(5) 0.816(3) 0.039(15) Uiso 1 1 d . . .
H23 H 0.716(3) -0.139(6) 0.690(3) 0.059(17) Uiso 1 1 d . . .

loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_23
_atom_site_aniso_U_13
_atom_site_aniso_U_12
Si1 0.0519(9) 0.0502(10) 0.0376(9) 0.0035(7) 0.0197(7) -0.0005(8)
N1 0.054(3) 0.055(3) 0.032(3) 0.002(2) 0.017(2) 0.002(2)
N2 0.037(2) 0.046(3) 0.031(2) 0.003(2) 0.008(2) -0.004(2)
N3 0.059(3) 0.020(2) 0.026(2) -0.002(2) 0.007(2) -0.003(2)
N4 0.062(3) 0.021(2) 0.031(3) -0.003(2) 0.009(2) -0.001(2)
O1 0.062(2) 0.023(2) 0.0337(19) -0.0007(15) 0.0099(17) 0.0029(17)
O2 0.079(3) 0.071(3) 0.063(2) 0.012(2) 0.041(2) 0.029(2)
O3 0.074(3) 0.100(3) 0.046(2) -0.022(2) 0.032(2) -0.033(2)
O4 0.091(3) 0.085(3) 0.051(2) 0.024(2) 0.017(2) -0.031(2)
C1 0.072(4) 0.081(4) 0.062(4) 0.007(3) 0.036(4) 0.013(4)
C2 0.074(5) 0.095(5) 0.090(5) 0.017(4) 0.035(4) 0.025(4)
C3 0.137(7) 0.125(7) 0.069(5) -0.030(5) 0.041(5) -0.033(6)
C4 0.084(5) 0.143(8) 0.088(6) 0.011(5) -0.002(5) 0.015(5)
C5 0.169(9) 0.074(5) 0.140(8) 0.040(5) 0.049(7) -0.027(6)
C6 0.118(6) 0.082(5) 0.067(4) 0.012(4) 0.028(4) -0.016(5)
C7 0.042(3) 0.038(3) 0.035(3) 0.001(2) 0.009(2) -0.002(2)
C8 0.044(3) 0.037(3) 0.032(3) 0.001(2) 0.010(3) 0.001(2)
C9 0.049(3) 0.033(3) 0.028(3) -0.003(2) 0.012(3) -0.003(2)
C10 0.045(3) 0.023(3) 0.033(3) 0.002(3) 0.013(2) 0.000(2)
C11 0.037(3) 0.024(3) 0.024(3) -0.001(2) 0.006(2) -0.005(2)
C12 0.040(3) 0.028(3) 0.034(3) -0.006(2) 0.011(2) -0.002(2)
C13 0.037(3) 0.029(3) 0.034(3) 0.005(2) 0.007(2) 0.002(2)
C14 0.037(3) 0.033(3) 0.029(3) 0.000(2) 0.010(2) -0.004(2)
C15 0.041(3) 0.036(3) 0.038(3) -0.008(2) 0.013(3) -0.002(3)
C16 0.041(3) 0.026(3) 0.032(3) -0.002(2) 0.006(2) 0.005(2)
C17 0.048(3) 0.052(3) 0.028(3) 0.003(3) 0.012(3) -0.009(3)
C18 0.055(4) 0.070(4) 0.040(3) 0.008(3) 0.010(3) -0.002(3)
C19 0.063(4) 0.097(5) 0.058(5) 0.025(4) 0.008(4) -0.006(4)
C20 0.065(5) 0.120(7) 0.041(4) 0.013(4) 0.009(4) -0.035(5)
C21 0.111(6) 0.118(6) 0.037(4) -0.007(4) 0.031(4) -0.015(5)
C22 0.090(5) 0.088(5) 0.043(4) 0.000(3) 0.028(4) 0.000(4)

_geom_special_details            
; 
All esds (except the esd in the dihedral angle between two l.s. planes) 
are estimated using the full covariance matrix.  The cell esds are taken 
into account individually in the estimation of esds in distances, angles 
and torsion angles; correlations between esds in cell parameters are only 
used when they are defined by crystal symmetry.  An approximate (isotropic) 
treatment of cell esds is used for estimating esds involving l.s. planes. 
;

loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
_geom_bond_site_symmetry_2
_geom_bond_publ_flag
Si1 O4 1.593(4) . ?
Si1 O2 1.614(4) . ?
Si1 O3 1.617(4) . ?
Si1 C7 1.836(5) . ?
N1 N2 1.261(5) . ?
N1 C17 1.430(6) . ?
N2 C14 1.428(6) . ?
N3 C10 1.375(6) . ?
N3 C11 1.398(5) . ?
N4 C10 1.352(6) . ?
N4 C9 1.446(6) . ?
O1 C10 1.227(5) . ?
O2 C1 1.410(6) . ?
O3 C3 1.456(8) . ?
O4 C5 1.320(7) . ?
C1 C2 1.479(7) . ?
C3 C4 1.416(8) . ?
C5 C6 1.400(9) . ?
C7 C8 1.543(6) . ?
C8 C9 1.514(6) . ?
C11 C16 1.388(6) . ?
C11 C12 1.392(6) . ?
C12 C13 1.380(6) . ?
C13 C14 1.388(6) . ?
C14 C15 1.384(6) . ?
C15 C16 1.381(6) . ?
C17 C18 1.357(7) . ?
C17 C22 1.375(7) . ?
C18 C19 1.399(7) . ?
C19 C20 1.358(9) . ?
C20 C21 1.364(9) . ?
C21 C22 1.394(8) . ?

loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
_geom_angle_site_symmetry_1
_geom_angle_site_symmetry_3
_geom_angle_publ_flag
O4 Si1 O2 108.8(2) . . ?
O4 Si1 O3 106.6(2) . . ?
O2 Si1 O3 111.4(2) . . ?
O4 Si1 C7 112.9(2) . . ?
O2 Si1 C7 104.8(2) . . ?
O3 Si1 C7 112.4(2) . . ?
N2 N1 C17 114.3(4) . . ?
N1 N2 C14 112.6(4) . . ?
C10 N3 C11 126.1(4) . . ?
C10 N4 C9 123.3(4) . . ?
C1 O2 Si1 128.2(3) . . ?
C3 O3 Si1 127.7(4) . . ?
C5 O4 Si1 131.0(5) . . ?
O2 C1 C2 110.0(5) . . ?
C4 C3 O3 113.1(6) . . ?
O4 C5 C6 120.6(7) . . ?
C8 C7 Si1 115.6(3) . . ?
C9 C8 C7 112.1(4) . . ?
N4 C9 C8 114.2(4) . . ?
O1 C10 N4 123.6(4) . . ?
O1 C10 N3 122.9(4) . . ?
N4 C10 N3 113.5(4) . . ?
C16 C11 C12 119.7(4) . . ?
C16 C11 N3 117.8(4) . . ?
C12 C11 N3 122.5(4) . . ?
C13 C12 C11 119.1(4) . . ?
C12 C13 C14 121.4(4) . . ?
C15 C14 C13 118.9(4) . . ?
C15 C14 N2 125.6(4) . . ?
C13 C14 N2 115.4(4) . . ?
C16 C15 C14 120.3(4) . . ?
C15 C16 C11 120.5(4) . . ?
C18 C17 C22 120.1(5) . . ?
C18 C17 N1 125.3(5) . . ?
C22 C17 N1 114.5(5) . . ?
C17 C18 C19 119.7(6) . . ?
C20 C19 C18 119.9(7) . . ?
C19 C20 C21 121.2(6) . . ?
C20 C21 C22 118.7(7) . . ?
C17 C22 C21 120.5(6) . . ?

_diffrn_measured_fraction_theta_max 0.996
_diffrn_reflns_theta_full        22.08
_diffrn_measured_fraction_theta_full 0.996
_refine_diff_density_max         0.673
_refine_diff_density_min         -0.248
_refine_diff_density_rms         0.054