#------------------------------------------------------------------------------ #$Date: 2016-02-14 14:26:36 +0000 (Sun, 14 Feb 2016) $ #$Revision: 176435 $ #$URL: svn://www.crystallography.net/cod/cif/2/00/50/2005058.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_2005058 loop_ _publ_author_name 'McEldoon, W. L.' 'Swenson, D. C.' 'Wiemer, D. F.' _publ_section_title (2'S,3'S,4'R)-5'-O-Benzoyl-3'-deoxy-3'\b-diethylphosphono-2'-O-tert-butyldimethylsilyluridine _journal_issue 6 _journal_name_full 'Acta Crystallographica Section C' _journal_page_first 1552 _journal_page_last 1554 _journal_paper_doi 10.1107/S0108270195014831 _journal_volume 52 _journal_year 1996 _chemical_formula_sum 'C26 H39 N2 O9 P Si' _chemical_formula_weight 582.66 _chemical_name_systematic ' ?' _symmetry_cell_setting orthorhombic _symmetry_space_group_name_H-M 'P 21 21 21' _atom_type_scat_source IntTabIV _cell_angle_alpha 90.00 _cell_angle_beta 90.00 _cell_angle_gamma 90.00 _cell_formula_units_Z 4 _cell_length_a 13.695(4) _cell_length_b 25.34(1) _cell_length_c 9.128(3) _cell_measurement_reflns_used 25 _cell_measurement_temperature 291 _cell_measurement_theta_max 15 _cell_measurement_theta_min 11 _cell_volume 3167.7(19) _computing_cell_refinement 'CAD-4 software' _computing_data_collection 'CAD-4 software (Enraf-Nonius, 1977)' _computing_data_reduction 'PROCESS MolEN (Fair, 1990)' _computing_molecular_graphics 'ORTEPII (Johnson, 1976)' _computing_publication_material 'CIF VAX MolEN' _computing_structure_refinement 'LSFM MolEN' _computing_structure_solution 'Direct methods (MULTAN; Main et al., 1980)' _diffrn_ambient_temperature 291 _diffrn_measurement_device Enraf_Nonius_CAD4 _diffrn_measurement_method \q/2\q _diffrn_radiation_type Mo_K\a _diffrn_radiation_wavelength 0.71073 _diffrn_reflns_av_R_equivalents 0.051 _diffrn_reflns_limit_h_max 0 _diffrn_reflns_limit_h_min -17 _diffrn_reflns_limit_k_max 32 _diffrn_reflns_limit_k_min -1 _diffrn_reflns_limit_l_max 3 _diffrn_reflns_limit_l_min -11 _diffrn_reflns_number 4791 _diffrn_reflns_theta_max 27.5 _diffrn_reflns_theta_min 2.0 _diffrn_standards_decay_% 0.86 _diffrn_standards_interval_time 480 _diffrn_standards_number 4 _exptl_absorpt_coefficient_mu 0.167 _exptl_absorpt_correction_T_max 0.0000 _exptl_absorpt_correction_T_min 0.0000 _exptl_absorpt_correction_type none _exptl_crystal_colour Colorless _exptl_crystal_density_diffrn 1.22 _exptl_crystal_density_method 'not measured' _exptl_crystal_description Needle _exptl_crystal_F_000 1240 _exptl_crystal_size_max 0.60 _exptl_crystal_size_mid 0.15 _exptl_crystal_size_min 0.03 _refine_diff_density_max 0.24 _refine_diff_density_min 0.08 _refine_ls_abs_structure_details '2'S,3'S,4'R (known in advance)' _refine_ls_extinction_method none _refine_ls_goodness_of_fit_obs 1.054 _refine_ls_hydrogen_treatment ;H3 refined, all other H atoms positioned using a riding model with U(H) = 1.1U bonded atom ; _refine_ls_matrix_type full _refine_ls_number_parameters 356 _refine_ls_number_reflns 2239 _refine_ls_number_restraints 0 _refine_ls_R_factor_all 0.150 _refine_ls_R_factor_obs 0.051 _refine_ls_shift/esd_max 0.041 _refine_ls_structure_factor_coef F _refine_ls_weighting_scheme sigma _refine_ls_wR_factor_obs 0.053 _reflns_number_observed 2239 _reflns_number_total 4042 _reflns_observed_criterion >2.0\s(I) _cod_data_source_file sx1005.cif _cod_data_source_block WIE51 _cod_depositor_comments ; The following automatic conversions were performed: '_geom_bond_publ_flag' value 'Yes' changed to 'yes' according to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29 (28 times). '_geom_angle_publ_flag' value 'Yes' changed to 'yes' according to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29 (61 time). '_geom_torsion_publ_flag' value 'Yes' changed to 'yes' according to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29 (5 times). Automatic conversion script Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana ; _cod_original_cell_volume 3167(3) _cod_original_formula_sum 'C26 H39 N2 O9 P1 Si1' _cod_database_code 2005058 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 P 0.0372(6) 0.0461(7) 0.0490(7) 0.0021(7) -0.0052(8) -0.0080(8) Si 0.0574(9) 0.0631(9) 0.0504(9) -0.0124(9) 0.0046(9) 0.0148(9) O4' 0.056(2) 0.050(2) 0.035(2) -0.010(2) -0.001(2) 0.007(2) O5 0.041(2) 0.062(2) 0.061(2) 0.006(2) 0.004(2) -0.014(2) O6 0.040(2) 0.051(2) 0.081(3) -0.006(2) -0.007(2) -0.011(3) O7 0.067(3) 0.060(2) 0.050(2) 0.004(2) -0.018(2) -0.006(2) O2' 0.051(2) 0.050(2) 0.046(2) -0.004(2) 0.014(2) 0.004(2) O2 0.025(2) 0.074(2) 0.082(3) 0.005(2) 0.000(2) -0.021(2) O4 0.053(2) 0.083(3) 0.222(6) 0.016(2) -0.029(4) -0.084(3) O5' 0.056(2) 0.062(2) 0.058(2) -0.005(2) 0.001(2) 0.023(2) O8 0.061(2) 0.105(3) 0.079(3) -0.030(2) -0.007(3) 0.036(3) N1 0.035(2) 0.044(2) 0.036(2) 0.004(2) 0.001(2) -0.006(2) N3 0.033(2) 0.058(3) 0.068(3) -0.008(2) -0.015(2) -0.015(3) C3' 0.033(2) 0.034(3) 0.043(3) 0.004(2) -0.002(2) -0.008(2) C2' 0.039(3) 0.040(3) 0.035(3) 0.007(2) 0.002(3) 0.001(3) C1' 0.038(3) 0.050(3) 0.040(3) -0.003(3) 0.001(3) -0.001(3) C4' 0.039(3) 0.040(3) 0.045(3) 0.007(2) -0.005(3) 0.005(3) C7 0.047(3) 0.078(5) 0.143(7) -0.017(3) 0.002(5) -0.020(5) C8 0.097(6) 0.188(8) 0.38(2) -0.085(5) -0.069(9) 0.140(10) C9 0.210(10) 0.101(6) 0.051(4) 0.040(7) -0.005(6) -0.013(5) C10 0.260(10) 0.197(8) 0.070(5) 0.121(8) -0.050(7) -0.060(6) C11 0.111(6) 0.053(4) 0.198(9) -0.009(4) 0.060(6) 0.020(6) C12 0.121(7) 0.260(10) 0.067(5) -0.067(7) -0.029(5) 0.067(6) C13 0.057(3) 0.070(4) 0.046(3) -0.013(3) 0.019(3) -0.007(3) C16 0.089(5) 0.139(7) 0.109(6) -0.019(5) 0.042(5) 0.032(6) C15 0.063(4) 0.206(9) 0.099(6) -0.001(6) -0.006(5) -0.021(7) C14 0.106(6) 0.093(6) 0.158(8) 0.010(5) 0.045(6) -0.010(7) C2 0.032(2) 0.054(3) 0.041(3) -0.005(3) -0.004(3) -0.005(3) C4 0.042(3) 0.064(4) 0.090(4) 0.010(3) -0.018(3) -0.030(4) C5 0.036(3) 0.067(4) 0.074(4) 0.007(3) -0.007(3) -0.025(3) C6 0.034(3) 0.070(4) 0.038(3) -0.005(3) -0.009(2) -0.008(3) C5' 0.047(3) 0.051(3) 0.061(4) -0.009(3) -0.004(3) 0.011(3) C17 0.049(3) 0.051(3) 0.065(4) -0.007(3) 0.006(3) 0.011(3) C18 0.044(3) 0.050(3) 0.063(4) 0.002(3) 0.007(3) 0.011(3) C19 0.050(3) 0.044(3) 0.065(4) 0.004(3) 0.012(3) 0.007(3) C20 0.058(3) 0.069(4) 0.067(4) 0.003(3) -0.006(4) -0.010(4) C21 0.096(5) 0.091(5) 0.073(5) -0.011(5) -0.019(4) 0.031(4) C22 0.130(6) 0.107(5) 0.087(5) -0.052(5) -0.014(5) 0.057(4) C23 0.082(4) 0.085(5) 0.073(4) -0.032(4) -0.010(4) 0.021(4) 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 _atom_site_calc_flag P 0.5534(1) 0.37815(6) 0.8013(2) 0.0441(3) Uani ? Si 0.2364(1) 0.30936(7) 1.0008(2) 0.0570(4) Uani ? O4' 0.3786(3) 0.3707(1) 0.5332(4) 0.047(1) Uani ? O5 0.5939(3) 0.3402(2) 0.6969(5) 0.055(1) Uani ? O6 0.5987(2) 0.4350(1) 0.8025(5) 0.057(1) Uani ? O7 0.5626(3) 0.3558(1) 0.9614(4) 0.059(1) Uani ? O2' 0.2820(3) 0.3509(1) 0.8791(4) 0.049(1) Uani ? O2 0.1631(2) 0.2804(2) 0.5207(5) 0.060(1) Uani ? O4 0.3441(3) 0.1402(2) 0.3830(8) 0.119(2) Uani ? O5' 0.4285(3) 0.4674(2) 0.4115(4) 0.059(1) Uani ? O8 0.5629(3) 0.5145(2) 0.3702(5) 0.081(1) Uani ? N1 0.3275(3) 0.2834(2) 0.5625(5) 0.038(1) Uani ? N3 0.2565(3) 0.2107(2) 0.4554(5) 0.053(1) Uani ? C3' 0.4249(3) 0.3929(2) 0.7745(6) 0.037(1) Uani ? C2' 0.3608(4) 0.3430(2) 0.7826(6) 0.038(1) Uani ? C1' 0.3218(4) 0.3365(2) 0.6233(6) 0.043(1) Uani ? C4' 0.3985(4) 0.4156(2) 0.6216(6) 0.041(1) Uani ? C7 0.7022(4) 0.4465(3) 0.785(1) 0.089(3) Uani ? C8 0.7122(6) 0.4991(4) 0.731(2) 0.221(6) Uani ? C9 0.5526(8) 0.3858(3) 1.0903(8) 0.121(3) Uani ? C10 0.5887(9) 0.3628(4) 1.220(1) 0.177(4) Uani ? C11 0.2543(6) 0.2407(3) 0.938(1) 0.121(3) Uani ? C12 0.3025(7) 0.3197(5) 1.1764(9) 0.150(4) Uani ? C13 0.1062(4) 0.3276(2) 1.0159(7) 0.058(2) Uani ? C16 0.0563(6) 0.2969(4) 1.139(1) 0.112(3) Uani ? C15 0.0527(6) 0.3170(4) 0.876(1) 0.123(3) Uani ? C14 0.0952(6) 0.3867(3) 1.047(1) 0.119(3) Uani ? C2 0.2428(3) 0.2596(2) 0.5126(6) 0.042(1) Uani ? C4 0.3436(4) 0.1832(2) 0.4367(8) 0.066(2) Uani ? C5 0.4276(4) 0.2124(2) 0.4857(7) 0.059(2) Uani ? C6 0.4183(4) 0.2600(2) 0.5450(6) 0.047(2) Uani ? C5' 0.4721(4) 0.4495(2) 0.5472(7) 0.053(2) Uani ? C17 0.4849(4) 0.4995(2) 0.3308(7) 0.055(2) Uani ? C18 0.4374(4) 0.5139(2) 0.1906(7) 0.052(2) Uani ? C19 0.3548(4) 0.4884(2) 0.1379(7) 0.053(2) Uani ? C20 0.3151(4) 0.5019(2) 0.0052(8) 0.064(2) Uani ? C21 0.3557(6) 0.5410(3) -0.0744(8) 0.086(2) Uani ? C22 0.4373(6) 0.5668(3) -0.0259(9) 0.108(3) Uani ? C23 0.4777(5) 0.5539(3) 0.1078(8) 0.080(2) Uani ? H3 0.214(3) 0.197(2) 0.419(4) 0.03(1) Uiso ? H8A 0.7780 0.5050 0.7026 0.2433 Uiso calc H8B 0.6948 0.5235 0.8060 0.2433 Uiso calc H8C 0.6705 0.5039 0.6492 0.2433 Uiso calc H10A 0.6570 0.3568 1.2100 0.1948 Uiso calc H10B 0.5565 0.3302 1.2365 0.1948 Uiso calc H10C 0.5772 0.3859 1.2998 0.1948 Uiso calc H11A 0.3222 0.2333 0.9323 0.1327 Uiso calc H11B 0.2256 0.2364 0.8441 0.1327 Uiso calc H11C 0.2243 0.2172 1.0053 0.1327 Uiso calc H12A 0.3105 0.2869 1.2248 0.1654 Uiso calc H12B 0.2660 0.3431 1.2371 0.1654 Uiso calc H12C 0.3649 0.3347 1.1570 0.1654 Uiso calc H16A -0.0124 0.3009 1.1314 0.1236 Uiso calc H16B 0.0776 0.3100 1.2311 0.1236 Uiso calc H16C 0.0728 0.2605 1.1314 0.1236 Uiso calc H15A 0.0607 0.2810 0.8491 0.1350 Uiso calc H15B -0.0147 0.3244 0.8887 0.1350 Uiso calc H15C 0.0782 0.3390 0.8004 0.1350 Uiso calc H14A 0.0319 0.3933 1.0870 0.1307 Uiso calc H14B 0.1433 0.3975 1.1151 0.1307 Uiso calc H14C 0.1027 0.4060 0.9588 0.1307 Uiso calc H3' 0.4132 0.4179 0.8501 0.0403 Uiso calc H2' 0.3957 0.3131 0.8171 0.0419 Uiso calc H1' 0.2541 0.3446 0.6260 0.0469 Uiso calc H4' 0.3455 0.4393 0.6353 0.0454 Uiso calc H7A 0.7305 0.4224 0.7181 0.0978 Uiso calc H7B 0.7340 0.4435 0.8776 0.0978 Uiso calc H9A 0.4851 0.3926 1.1042 0.1336 Uiso calc H9B 0.5862 0.4182 1.0759 0.1336 Uiso calc H5 0.4907 0.1973 0.4755 0.0650 Uiso calc H6 0.4751 0.2784 0.5760 0.0521 Uiso calc H5'A 0.4880 0.4789 0.6074 0.0583 Uiso calc H5'B 0.5296 0.4298 0.5273 0.0583 Uiso calc H19 0.3254 0.4613 0.1947 0.0583 Uiso calc H20 0.2592 0.4838 -0.0305 0.0709 Uiso calc H21 0.3272 0.5508 -0.1653 0.0951 Uiso calc H22 0.4661 0.5936 -0.0844 0.1187 Uiso calc H23 0.5332 0.5725 0.1429 0.0880 Uiso calc 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 O5 P O6 117.3(3) yes O5 P O7 109.7(3) yes O5 P C3' 114.5(3) yes O6 P O7 107.1(3) yes O6 P C3' 101.2(2) yes O7 P C3' 106.1(3) yes O2' Si C11 109.9(4) yes O2' Si C12 107.8(3) yes O2' Si C13 104.8(3) yes C11 Si C12 109.6(6) yes C11 Si C13 112.7(4) yes C12 Si C13 111.8(5) yes C1' O4' C4' 105.3(4) yes P O6 C7 124.6(4) yes P O7 C9 125.0(5) yes Si O2' C2' 128.3(4) yes C5' O5' C17 114.9(5) yes C1' N1 C2 118.9(5) yes C1' N1 C6 119.1(5) yes C2 N1 C6 121.7(5) yes C2 N3 C4 128.4(5) yes C2 N3 H3 119 ? C4 N3 H3 112 ? P C3' C2' 112.1(4) yes P C3' C4' 115.1(4) yes P C3' H3' 101.7 ? C2' C3' C4' 102.4(4) yes C2' C3' H3' 114.5 ? C4' C3' H3' 111.6 ? O2' C2' C3' 110.5(4) yes O2' C2' C1' 109.6(4) yes O2' C2' H2' 107.0 ? C3' C2' C1' 103.7(5) yes C3' C2' H2' 112.5 ? C1' C2' H2' 113.4 ? O4' C1' N1 108.2(4) yes O4' C1' C2' 106.7(4) yes O4' C1' H1' 114.6 ? N1 C1' C2' 115.8(5) yes N1 C1' H1' 105.2 ? C2' C1' H1' 106.7 ? O4' C4' C3' 105.0(4) yes O4' C4' C5' 109.5(5) yes O4' C4' H4' 115.7 ? C3' C4' C5' 117.8(5) yes C3' C4' H4' 107.1 ? C5' C4' H4' 102.3 ? O6 C7 C8 108.5(7) yes O6 C7 H7A 109.7 ? O6 C7 H7B 109.7 ? C8 C7 H7A 110 ? C8 C7 H7B 109.7 ? H7A C7 H7B 109.5 ? C7 C8 H8A 109 ? C7 C8 H8B 109 ? C7 C8 H8C 109 ? H8A C8 H8B 109 ? H8A C8 H8C 109 ? H8B C8 H8C 109 ? O7 C9 C10 116.3(8) yes O7 C9 H9A 107.7 ? O7 C9 H9B 107.7(8) ? C10 C9 H9A 108 ? C10 C9 H9B 108 ? H9A C9 H9B 109 ? C9 C10 H10A 109 ? C9 C10 H10B 110 ? C9 C10 H10C 109 ? H10A C10 H10B 109 ? H10A C10 H10C 109 ? H10B C10 H10C 109 ? Si C11 H11A 109.4 ? Si C11 H11B 109.5 ? Si C11 H11C 109.5 ? H11A C11 H11B 109 ? H11A C11 H11C 109 ? H11B C11 H11C 109.5 ? Si C12 H12A 109 ? Si C12 H12B 109.4 ? Si C12 H12C 109.5 ? H12A C12 H12B 109.5 ? H12A C12 H12C 109 ? H12B C12 H12C 109 ? Si C13 C16 111.0(6) yes Si C13 C15 111.3(5) yes Si C13 C14 110.7(5) yes C16 C13 C15 108.6(7) yes C16 C13 C14 108.5(7) yes C15 C13 C14 106.6(8) yes C13 C16 H16A 109.5 ? C13 C16 H16B 109.5 ? C13 C16 H16C 109.4 ? H16A C16 H16B 109.5 ? H16A C16 H16C 109. ? H16B C16 H16C 109. ? C13 C15 H15A 109.4 ? C13 C15 H15B 109.5 ? C13 C15 H15C 109.5 ? H15A C15 H15B 109 ? H15A C15 H15C 109 ? H15B C15 H15C 109 ? C13 C14 H14A 109.3 ? C13 C14 H14B 109.6 ? C13 C14 H14C 109.5 ? H14A C14 H14B 109 ? H14A C14 H14C 109 ? H14B C14 H14C 109 ? O2 C2 N1 122.8(6) yes O2 C2 N3 123.0(5) yes N1 C2 N3 114.2(5) yes O4 C4 N3 120.7(6) yes O4 C4 C5 126.3(6) yes N3 C4 C5 113.0(6) yes C4 C5 C6 121.1(6) yes C4 C5 H5 119.5 ? C6 C5 H5 119.5 ? N1 C6 C5 121.4(5) yes N1 C6 H6 119.3 ? C5 C6 H6 119.3 ? O5' C5' C4' 106.9(5) yes O5' C5' H5'A 110.1 ? O5' C5' H5'B 110.1 ? C4' C5' H5'A 110.1 ? C4' C5' H5'B 110.1 ? H5'A C5' H5'B 109.5 ? O5' C17 O8 123.0(7) yes O5' C17 C18 111.8(6) yes O8 C17 C18 125.3(6) yes C17 C18 C19 122.9(6) yes C17 C18 C23 118.6(6) yes C19 C18 C23 118.5(6) yes C18 C19 C20 120.9(6) yes C18 C19 H19 119.5 ? C20 C19 H19 119.5 ? C19 C20 C21 119.7(7) yes C19 C20 H20 120.2 ? C21 C20 H20 120.2 ? C20 C21 C22 120.9(8) yes C20 C21 H21 119.6 ? C22 C21 H21 119.6 ? C21 C22 C23 120.1(8) yes C21 C22 H22 119.9 ? C23 C22 H22 119.9 ? C18 C23 C22 119.9(7) yes C18 C23 H23 120.1 ? C22 C23 H23 120.1 ? loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_distance _geom_bond_publ_flag P O5 1.464(4) yes P O6 1.568(4) yes P O7 1.573(5) yes P C3' 1.816(5) yes Si O2' 1.653(4) yes Si C11 1.847(8) yes Si C12 1.859(9) yes Si C13 1.847(7) yes O4' C1' 1.425(7) yes O4' C4' 1.421(7) yes O6 C7 1.455(7) yes O7 C9 1.408(9) yes O2' C2' 1.407(6) yes O2 C2 1.215(6) yes O4 C4 1.195(7) yes O5' C5' 1.449(8) yes O5' C17 1.342(7) yes O8 C17 1.190(7) yes N1 C1' 1.457(7) yes N1 C2 1.385(7) yes N1 C6 1.387(7) yes N3 C2 1.356(8) yes N3 C4 1.392(8) yes N3 H3 0.76(5) yes C3' C2' 1.541(8) yes C3' C4' 1.552(8) yes C3' H3' 0.95 yes C2' C1' 1.558(8) yes C2' H2' 0.95 ? C1' H1' 0.9 ? C4' C5' 1.489(8) ? C4' H4' 0.95 ? C7 C8 1.430(10) ? C7 H7A 0.95 ? C7 H7B 0.95 ? C8 H8A 0.95 ? C8 H8B 0.95 ? C8 H8C 0.95 ? C9 C10 1.410(10) ? C9 H9A 0.95 ? C9 H9B 0.95 ? C10 H10A 0.95 ? C10 H10B 0.95 ? C10 H10C 0.95 ? C11 H11A 0.95 ? C11 H11B 0.95 ? C11 H11C 0.95 ? C12 H12A 0.95 ? C12 H12B 0.95 ? C12 H12C 0.95 ? C13 C16 1.530(10) ? C13 C15 1.500(10) ? C13 C14 1.530(10) ? C16 H16A 0.95 ? C16 H16B 0.95 ? C16 H16C 0.95 ? C15 H15A 0.95 ? C15 H15B 0.95 ? C15 H15C 0.95 ? C14 H14A 0.95 ? C14 H14B 0.95 ? C14 H14C 0.95 ? C4 C5 1.437(8) ? C5 C6 1.329(8) ? C5 H5 0.95 ? C6 H6 0.95 ? C5' H5'A 0.95 ? C5' H5'B 0.95 ? C17 C18 1.481(9) ? C18 C19 1.388(8) ? C18 C23 1.379(9) ? C19 C20 1.372(9) ? C19 H19 0.95 ? C20 C21 1.350(10) ? C20 H20 0.95 ? C21 C22 1.370(10) ? C21 H21 0.95 ? C22 C23 1.380(10) ? C22 H22 0.95 ? C23 H23 0.95 ? loop_ _geom_torsion_atom_site_label_1 _geom_torsion_atom_site_label_2 _geom_torsion_atom_site_label_3 _geom_torsion_atom_site_label_4 _geom_torsion _geom_torsion_publ_flag O5 P O6 C7 -39.1(6) ? O7 P O6 C7 84.6(6) ? C3' P O6 C7 -164.5(6) ? O5 P O7 C9 164.5(6) ? O6 P O7 C9 36.2(7) ? C3' P O7 C9 -71.3(7) ? O5 P C3' C2' 57.9(4) ? O5 P C3' C4' -58.6(4) ? O6 P C3' C2' -175.0(4) ? O6 P C3' C4' 68.6(4) ? O7 P C3' C2' -63.3(4) ? O7 P C3' C4' -179.8(3) ? C11 Si O2' C2' -29.7(5) ? C12 Si O2' C2' 89.7(5) ? C13 Si O2' C2' -151.1(4) ? O2' Si C13 C16 -173.0(5) ? O2' Si C13 C15 65.9(6) ? O2' Si C13 C14 -52.5(6) ? C11 Si C13 C16 67.5(6) ? C11 Si C13 C15 -53.7(7) ? C11 Si C13 C14 -172.0(6) ? C12 Si C13 C16 -56.6(7) ? C12 Si C13 C15 -177.7(6) ? C12 Si C13 C14 64.0(7) ? C4' O4' C1' N1 -160.3(4) ? C4' O4' C1' C2' -35.1(5) yes C1' O4' C4' C3' 42.7(5) yes C1' O4' C4' C5' 170.0(4) ? P O6 C7 C8 155.9(8) ? P O7 C9 C10 -163.4(7) ? Si O2' C2' C3' -138.8(4) ? Si O2' C2' C1' 107.5(4) ? C17 O5' C5' C4' 179.0(5) ? C5' O5' C17 O8 -3.7(8) ? C5' O5' C17 C18 177.0(5) ? C2 N1 C1' O4' -117.3(5) ? C2 N1 C1' C2' 123.1(5) ? C6 N1 C1' O4' 57.4(6) ? C6 N1 C1' C2' -62.3(6) ? C1' N1 C2 O2 -2.0(8) ? C1' N1 C2 N3 178.7(5) ? C6 N1 C2 O2 -176.5(5) ? C6 N1 C2 N3 4.2(7) ? C1' N1 C6 C5 -177.8(5) ? C2 N1 C6 C5 -3.3(8) ? C4 N3 C2 O2 178.2(6) ? C4 N3 C2 N1 -2.5(8) ? H3 N3 C2 O2 6.81(3.56) ? H3 N3 C2 N1 -173.86(3.48) ? C2 N3 C4 O4 -179.4(7) ? C2 N3 C4 C5 -0.2(9) ? H3 N3 C4 O4 -7.48(3.38) ? H3 N3 C4 C5 171.64(3.29) ? P C3' C2' O2' 129.9(4) ? P C3' C2' C1' -112.7(4) ? C4' C3' C2' O2' -106.3(4) ? C4' C3' C2' C1' 11.2(5) yes P C3' C4' O4' 89.2(4) ? P C3' C4' C5' -32.9(6) ? C2' C3' C4' O4' -32.7(5) yes C2' C3' C4' C5' -154.8(5) ? O2' C2' C1' O4' 131.4(4) ? O2' C2' C1' N1 -108.1(5) ? C3' C2' C1' O4' 13.3(5) yes C3' C2' C1' N1 133.8(4) ? O4' C4' C5' O5' 62.9(5) ? C3' C4' C5' O5' -177.3(4) ? O4 C4 C5 C6 -179.5(7) ? N3 C4 C5 C6 1.4(9) ? C4 C5 C6 N1 0.3(9) ? O5' C17 C18 C19 -12.3(8) ? O5' C17 C18 C23 168.4(5) ? O8 C17 C18 C19 168.4(6) ? O8 C17 C18 C23 -11.0(9) ? C17 C18 C19 C20 -178.0(6) ? C23 C18 C19 C20 1.4(9) ? C17 C18 C23 C22 177.6(6) ? C19 C18 C23 C22 -1.8(10) ? C18 C19 C20 C21 -1.2(9) ? C19 C20 C21 C22 1.36(1.08) ? C20 C21 C22 C23 -1.78(1.17) ? C21 C22 C23 C18 1.99(1.12) ?