#------------------------------------------------------------------------------ #$Date: 2012-02-03 17:16:24 +0000 (Fri, 03 Feb 2012) $ #$Revision: 32112 $ #$URL: svn://www.crystallography.net/cod/cif/2/20/02/2200283.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_2200283 loop_ _publ_author_name 'Coutrot, Fr\'ed\'eric' 'Grison, Claude' 'Coutrot, Philippe' 'Toupet, Loic' _publ_section_title ;Isopropyl 6,7-dideoxy-1,2:3,4-di-O-isopropylidene-7-{[(S)-1-phenylethyl]amino}-L-glycero-\a-D-galacto-octopyranuronate ; _journal_issue 6 _journal_name_full 'Acta Crystallographica Section E' _journal_page_first o519 _journal_page_last o520 _journal_volume 57 _journal_year 2001 _chemical_formula_iupac 'C25 H37 N O7' _chemical_formula_moiety 'C25 H37 N O7' _chemical_formula_sum 'C25 H37 N O7' _chemical_formula_weight 463.56 _chemical_name_systematic ; ? ; _space_group_IT_number 19 _symmetry_cell_setting orthorhombic _symmetry_space_group_name_Hall 'P 2ac 2ab' _symmetry_space_group_name_H-M 'P 21 21 21' _cell_angle_alpha 90.00 _cell_angle_beta 90.00 _cell_angle_gamma 90.00 _cell_formula_units_Z 4 _cell_length_a 9.8090(10) _cell_length_b 13.978(5) _cell_length_c 18.730(2) _cell_measurement_reflns_used 25 _cell_measurement_temperature 293(2) _cell_measurement_theta_max 12.0 _cell_measurement_theta_min 7.5 _cell_volume 2568.1(10) _computing_cell_refinement 'CAD-4 Operations Manual' _computing_data_collection 'CAD-4 Operations Manual (Enraf-Nonius, 1977)' _computing_data_reduction 'PROCESS in MolEN (Fair, 1990)' _computing_molecular_graphics 'PLATON (Spek, 1998)' _computing_publication_material SHELXL97 _computing_structure_refinement 'SHELXL97 (Sheldrick, 1997)' _computing_structure_solution 'SIR97 (Altomare et al., 1998)' _diffrn_ambient_temperature 293(2) _diffrn_measured_fraction_theta_full .999 _diffrn_measured_fraction_theta_max .999 _diffrn_measurement_device_type 'Enraf-Nonius CAD-4' _diffrn_measurement_method \w _diffrn_radiation_monochromator graphite _diffrn_radiation_source 'fine-focus sealed tube' _diffrn_radiation_type MoK\a _diffrn_radiation_wavelength .71069 _diffrn_reflns_av_R_equivalents .0000 _diffrn_reflns_av_sigmaI/netI .0685 _diffrn_reflns_limit_h_max 12 _diffrn_reflns_limit_h_min 0 _diffrn_reflns_limit_k_max 17 _diffrn_reflns_limit_k_min 0 _diffrn_reflns_limit_l_max 23 _diffrn_reflns_limit_l_min 0 _diffrn_reflns_number 3143 _diffrn_reflns_theta_full 26.96 _diffrn_reflns_theta_max 26.96 _diffrn_reflns_theta_min 2.17 _diffrn_standards_decay_% .6 _diffrn_standards_interval_time 60 _diffrn_standards_number 3 _exptl_absorpt_coefficient_mu .087 _exptl_absorpt_correction_type none _exptl_absorpt_process_details none _exptl_crystal_colour colourless _exptl_crystal_density_diffrn 1.199 _exptl_crystal_density_method 'not measured' _exptl_crystal_description block _exptl_crystal_F_000 1000 _exptl_crystal_size_max .25 _exptl_crystal_size_mid .15 _exptl_crystal_size_min .15 _refine_diff_density_max .270 _refine_diff_density_min -.252 _refine_ls_extinction_coef .0090(10) _refine_ls_extinction_method SHELXL97 _refine_ls_goodness_of_fit_ref 1.009 _refine_ls_hydrogen_treatment mixed _refine_ls_matrix_type full _refine_ls_number_parameters 270 _refine_ls_number_reflns 3143 _refine_ls_number_restraints 1 _refine_ls_restrained_S_all 1.031 _refine_ls_R_factor_all .1313 _refine_ls_R_factor_gt .0470 _refine_ls_shift/su_max .014 _refine_ls_shift/su_mean .001 _refine_ls_structure_factor_coef Fsqd _refine_ls_weighting_details 'calc w = 1/[\s^2^(Fo^2^)+(0.0537P)^2^+0.5544P] where P = (Fo^2^+2Fc^2^)/3' _refine_ls_weighting_scheme calc _refine_ls_wR_factor_ref .1252 _reflns_number_gt 1782 _reflns_number_total 3143 _reflns_threshold_expression I>2\s(I) _[local]_cod_data_source_file cf6056.cif _[local]_cod_data_source_block I _cod_depositor_comments ; The following automatic conversions were performed: '_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic' according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29. Automatic conversion script Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius The following automatic conversions were performed: '_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic' according to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29. Automatic conversion script Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana ; _cod_database_code 2200283 loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' '-x+1/2, -y, z+1/2' 'x+1/2, -y+1/2, -z' '-x, y+1/2, -z+1/2' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv _atom_site_adp_type _atom_site_calc_flag _atom_site_refinement_flags _atom_site_occupancy _atom_site_disorder_assembly _atom_site_disorder_group _atom_site_type_symbol O3 .3963(3) .56128(17) .75039(14) .0506(7) Uani d . 1 . . O O2 .2081(3) .7045(2) .62422(14) .0545(8) Uani d . 1 . . O O1 .3994(3) .7844(2) .59216(14) .0593(8) Uani d . 1 . . O O5 .4877(2) .75561(17) .70501(13) .0436(7) Uani d . 1 . . O O4 .3501(3) .66468(18) .84102(14) .0538(8) Uani d . 1 . . O O6 .4704(3) 1.00844(19) .93660(14) .0556(8) Uani d . 1 . . O O7 .4347(3) .85621(19) .96623(14) .0575(8) Uani d . 1 . . O N1 .2996(3) .9873(2) .81541(15) .0407(8) Uani d . 1 A . N H1A .3730 1.0232 .8022 .049 Uiso d . 1 . . H C1 .4422(4) .7134(3) .64094(19) .0440(9) Uani d . 1 . . C H1 .5170 .6767 .6197 .053 Uiso calc R 1 . . H C2 .3190(4) .6488(3) .6495(2) .0422(9) Uani d . 1 . . C H2 .3295 .5910 .6203 .051 Uiso calc R 1 . . H C3 .2897(4) .6222(3) .7260(2) .0422(9) Uani d . 1 . . C H3 .2018 .5892 .7293 .051 Uiso calc R 1 . . H C4 .2939(4) .7061(2) .77812(19) .0410(9) Uani d . 1 . . C H4 .2009 .7281 .7878 .049 Uiso calc R 1 . . H C5 .3796(3) .7900(2) .75029(19) .0366(8) Uani d . 1 . . C H5 .3208 .8327 .7224 .044 Uiso calc R 1 . . H C6 .4485(4) .8475(3) .80820(19) .0383(9) Uani d . 1 . . C H6A .5131 .8911 .7863 .046 Uiso calc R 1 . . H H6B .4995 .8043 .8387 .046 Uiso calc R 1 . . H C7 .3495(4) .9049(2) .85413(19) .0357(9) Uani d . 1 . . C H7 .2718 .8639 .8661 .043 Uiso calc R 1 . . H C8 .4237(4) .9319(3) .9238(2) .0376(9) Uani d . 1 . . C C9 .5229(5) .8628(3) 1.0287(2) .0567(12) Uani d . 1 . . C H9 .5839 .9179 1.0237 .068 Uiso calc R 1 . . H C10 .6047(5) .7726(4) 1.0303(3) .0841(16) Uani d . 1 . . C H10A .6586 .7681 .9876 .101 Uiso calc R 1 . . H H10B .5445 .7186 1.0331 .101 Uiso calc R 1 . . H H10C .6637 .7731 1.0712 .101 Uiso calc R 1 . . H C11 .4348(6) .8756(4) 1.0933(2) .0915(18) Uani d . 1 . . C H11A .3858 .9348 1.0896 .110 Uiso calc R 1 . . H H11B .4909 .8767 1.1353 .110 Uiso calc R 1 . . H H11C .3713 .8235 1.0965 .110 Uiso calc R 1 . . H C12 .2631(5) .7642(3) .5694(2) .0607(12) Uani d . 1 . . C C13 .1834(6) .8552(4) .5671(3) .0960(18) Uani d . 1 . . C H13A .2190 .8958 .5302 .115 Uiso calc R 1 . . H H13B .1905 .8872 .6123 .115 Uiso calc R 1 . . H H13C .0894 .8411 .5573 .115 Uiso calc R 1 . . H C14 .2652(6) .7127(4) .4982(2) .0863(18) Uani d . 1 . . C H14A .3023 .7542 .4624 .104 Uiso calc R 1 . . H H14B .1739 .6949 .4853 .104 Uiso calc R 1 . . H H14C .3205 .6562 .5020 .104 Uiso calc R 1 . . H C15 .4041(5) .5718(3) .8259(2) .0541(11) Uani d . 1 . . C C16 .5500(5) .5676(4) .8482(3) .0891(18) Uani d . 1 . . C H16A .5862 .5053 .8378 .107 Uiso calc R 1 . . H H16B .5566 .5797 .8985 .107 Uiso calc R 1 . . H H16C .6010 .6151 .8226 .107 Uiso calc R 1 . . H C17 .3160(7) .4977(3) .8622(3) .0886(18) Uani d . 1 . . C H17A .3518 .4351 .8527 .106 Uiso calc R 1 . . H H17B .2246 .5020 .8442 .106 Uiso calc R 1 . . H H17C .3157 .5090 .9127 .106 Uiso calc R 1 . . H C18 .1842(4) 1.0374(3) .8483(2) .0466(10) Uani d D 1 . . C H18 .2082 1.0513 .8991 .056 Uiso d . 1 . . H C19 .1654(5) 1.1331(3) .8106(3) .0654(13) Uani d . 1 A . C H19A .2486 1.1688 .8117 .079 Uiso d . 1 . . H H19B .0936 1.1682 .8321 .079 Uiso d . 1 . . H H19C .1424 1.1200 .7609 .079 Uiso d . 1 . . H C20A .0615(5) .9842(4) .8559(3) .039(2) Uiso d PG .547(10) A 1 C C21A -.0217(6) .9906(4) .9158(3) .060(2) Uiso d PG .547(10) A 1 C H21A .0049 1.0279 .9545 .072 Uiso calc PR .547(10) A 1 H C22A -.1446(5) .9412(5) .9179(3) .075(3) Uiso d PG .547(10) A 1 C H22A -.2003 .9455 .9580 .090 Uiso calc PR .547(10) A 1 H C23A -.1844(5) .8855(4) .8601(4) .057(3) Uiso d PG .547(10) A 1 C H23A -.2667 .8525 .8615 .068 Uiso calc PR .547(10) A 1 H C24A -.1013(6) .8791(4) .8002(3) .076(3) Uiso d PG .547(10) A 1 C H24A -.1279 .8418 .7615 .091 Uiso calc PR .547(10) A 1 H C25A .0217(5) .9285(4) .7981(3) .051(2) Uiso d PG .547(10) A 1 C H25A .0774 .9242 .7580 .061 Uiso calc PR .547(10) A 1 H C20B .0560(7) .9738(5) .8325(4) .043(3) Uiso d PGD .453(10) A 2 C C21B -.0427(8) .9658(6) .8855(4) .075(4) Uiso d PG .453(10) A 2 C H21B -.0311 .9972 .9288 .090 Uiso calc PR .453(10) A 2 H C22B -.1586(7) .9109(7) .8736(5) .101(5) Uiso d PG .453(10) A 2 C H22B -.2246 .9056 .9090 .122 Uiso calc PR .453(10) A 2 H C23B -.1759(6) .8639(6) .8088(5) .077(4) Uiso d PG .453(10) A 2 C H23B -.2535 .8272 .8009 .092 Uiso calc PR .453(10) A 2 H C24B -.0772(7) .8719(5) .7559(4) .079(4) Uiso d PG .453(10) A 2 C H24B -.0888 .8405 .7125 .095 Uiso calc PR .453(10) A 2 H C25B .0387(7) .9269(6) .7677(4) .061(3) Uiso d PG .453(10) A 2 C H25B .1047 .9322 .7323 .074 Uiso calc PR .453(10) A 2 H 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 O3 .0707(18) .0391(14) .0421(14) .0119(15) .0010(15) -.0011(13) O2 .0522(17) .0550(17) .0564(17) .0035(16) -.0109(15) .0020(15) O1 .076(2) .0549(17) .0474(16) -.0045(17) -.0040(16) .0128(15) O5 .0397(14) .0481(15) .0430(14) .0020(13) .0047(12) -.0072(13) O4 .082(2) .0391(15) .0406(15) .0064(16) .0037(16) .0004(13) O6 .080(2) .0411(16) .0459(16) -.0110(16) -.0114(16) .0032(14) O7 .077(2) .0450(16) .0502(16) -.0168(17) -.0223(16) .0165(14) N1 .0435(18) .0403(17) .0384(16) .0087(16) -.0028(16) -.0018(15) C1 .051(2) .043(2) .038(2) .006(2) .0035(19) -.006(2) C2 .044(2) .038(2) .045(2) -.001(2) -.004(2) -.0060(19) C3 .042(2) .033(2) .051(2) -.0023(18) .002(2) -.0036(18) C4 .043(2) .0348(19) .045(2) .0041(19) .0023(19) -.0044(18) C5 .0356(19) .0309(18) .043(2) .0039(17) -.0001(18) .0013(19) C6 .0357(19) .0336(19) .046(2) .0027(18) .0005(18) -.0027(18) C7 .036(2) .0304(18) .041(2) -.0030(17) -.0011(18) .0013(17) C8 .038(2) .033(2) .042(2) -.0007(19) .0025(18) .0057(19) C9 .069(3) .055(3) .046(2) -.006(3) -.021(2) .008(2) C10 .087(4) .093(4) .072(3) .024(3) -.018(3) .005(3) C11 .124(5) .091(4) .060(3) .015(4) -.006(3) -.003(3) C12 .079(3) .054(3) .049(3) .008(3) -.011(2) .002(2) C13 .120(5) .080(4) .087(4) .033(4) -.022(4) .011(3) C14 .115(5) .096(4) .048(2) .001(4) -.012(3) -.004(3) C15 .074(3) .046(2) .042(2) .015(2) .007(2) .002(2) C16 .088(4) .121(5) .058(3) .037(4) -.018(3) -.014(3) C17 .143(5) .051(3) .071(3) .000(4) .032(4) .012(3) C18 .047(2) .045(2) .048(2) .008(2) .001(2) .002(2) C19 .062(3) .047(3) .088(3) .009(2) -.013(3) .004(3) loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_site_symmetry_2 _geom_bond_distance _geom_bond_publ_flag O3 C3 . 1.423(4) no O3 C15 . 1.423(5) no O2 C2 . 1.419(4) no O2 C12 . 1.428(5) no O1 C1 . 1.412(5) no O1 C12 . 1.431(5) no O5 C1 . 1.410(4) no O5 C5 . 1.440(4) no O4 C4 . 1.424(4) no O4 C15 . 1.431(5) no O6 C8 . 1.189(4) no O7 C8 . 1.328(4) no O7 C9 . 1.458(4) no N1 C7 . 1.446(4) no N1 C18 . 1.466(5) no C1 C2 . 1.518(5) no C2 C3 . 1.507(5) no C3 C4 . 1.528(5) no C4 C5 . 1.534(5) no C5 C6 . 1.509(5) no C6 C7 . 1.526(5) no C7 C8 . 1.540(5) no C9 C10 . 1.496(6) no C9 C11 . 1.498(6) no C12 C13 . 1.495(6) no C12 C14 . 1.515(6) no C15 C16 . 1.492(7) no C15 C17 . 1.510(6) no C18 C20A . 1.422(5) no C18 C19 . 1.525(5) no C18 C20B . 1.568(7) no C20A C21A . 1.390 no C20A C25A . 1.390 no C21A C22A . 1.390 no C22A C23A . 1.390 no C23A C24A . 1.390 no C24A C25A . 1.390 no C20B C21B . 1.390 no C20B C25B . 1.390 no C21B C22B . 1.390 no C22B C23B . 1.390 no C23B C24B . 1.390 no C24B C25B . 1.390 no loop_ _atom_type_symbol _atom_type_description _atom_type_scat_dispersion_real _atom_type_scat_dispersion_imag _atom_type_scat_source C C .0033 .0016 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' H H .0000 .0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' N N .0061 .0033 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' O O .0106 .0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' 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 C3 O3 C15 107.3(3) no C2 O2 C12 105.7(3) no C1 O1 C12 109.4(3) no C1 O5 C5 114.1(3) no C4 O4 C15 110.4(3) no C8 O7 C9 118.6(3) no C7 N1 C18 115.5(3) no O5 C1 O1 110.5(3) no O5 C1 C2 114.3(3) no O1 C1 C2 104.5(3) no O2 C2 C3 107.9(3) no O2 C2 C1 104.3(3) no C3 C2 C1 113.5(3) no O3 C3 C2 108.2(3) no O3 C3 C4 103.5(3) no C2 C3 C4 114.4(3) no O4 C4 C3 103.1(3) no O4 C4 C5 112.3(3) no C3 C4 C5 112.6(3) no O5 C5 C6 105.8(3) no O5 C5 C4 110.3(3) no C6 C5 C4 114.1(3) no C5 C6 C7 113.6(3) no N1 C7 C6 110.6(3) no N1 C7 C8 113.0(3) no C6 C7 C8 107.8(3) no O6 C8 O7 124.4(3) no O6 C8 C7 125.0(3) no O7 C8 C7 110.6(3) no O7 C9 C10 106.3(4) no O7 C9 C11 108.3(4) no C10 C9 C11 113.2(4) no O2 C12 O1 104.7(3) no O2 C12 C13 108.7(4) no O1 C12 C13 109.2(4) no O2 C12 C14 111.1(4) no O1 C12 C14 110.1(4) no C13 C12 C14 112.7(4) no O3 C15 O4 105.7(3) no O3 C15 C16 109.0(4) no O4 C15 C16 109.5(4) no O3 C15 C17 110.2(4) no O4 C15 C17 108.7(3) no C16 C15 C17 113.3(4) no C20A C18 N1 116.5(4) no C20A C18 C19 113.8(4) no N1 C18 C19 108.5(3) no C20A C18 C20B 17.0(3) no N1 C18 C20B 105.6(4) no C19 C18 C20B 108.2(4) no C21A C20A C25A 120.0 no C21A C20A C18 123.0(4) no C25A C20A C18 116.9(4) no C20A C21A C22A 120.0 no C23A C22A C21A 120.0 no C22A C23A C24A 120.0 no C23A C24A C25A 120.0 no C24A C25A C20A 120.0 no C21B C20B C25B 120.0 no C21B C20B C18 118.0(5) no C25B C20B C18 122.0(5) no C20B C21B C22B 120.0 no C21B C22B C23B 120.0 no C24B C23B C22B 120.0 no C25B C24B C23B 120.0 no C24B C25B C20B 120.0 no 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 C5 O5 C1 O1 75.4(4) no C5 O5 C1 C2 -42.1(4) yes C12 O1 C1 O5 -125.7(3) no C12 O1 C1 C2 -2.3(4) no C12 O2 C2 C3 152.9(3) no C12 O2 C2 C1 31.9(4) no O5 C1 C2 O2 102.7(4) no O1 C1 C2 O2 -18.2(4) yes O5 C1 C2 C3 -14.4(5) yes O1 C1 C2 C3 -135.4(3) no C15 O3 C3 C2 154.0(3) no C15 O3 C3 C4 32.2(4) no O2 C2 C3 O3 176.5(3) yes C1 C2 C3 O3 -68.4(4) no O2 C2 C3 C4 -68.7(4) no C1 C2 C3 C4 46.4(5) yes C15 O4 C4 C3 11.9(4) no C15 O4 C4 C5 -109.6(3) no O3 C3 C4 O4 -26.6(4) yes C2 C3 C4 O4 -144.2(3) no O3 C3 C4 C5 94.7(3) no C2 C3 C4 C5 -22.8(5) yes C1 O5 C5 C6 -170.0(3) no C1 O5 C5 C4 66.1(4) yes O4 C4 C5 O5 85.7(3) no C3 C4 C5 O5 -30.3(4) yes O4 C4 C5 C6 -33.2(4) yes C3 C4 C5 C6 -149.2(3) no O5 C5 C6 C7 169.6(3) no C4 C5 C6 C7 -68.9(4) no C18 N1 C7 C6 168.5(3) no C18 N1 C7 C8 -70.6(4) no C5 C6 C7 N1 -74.5(4) no C5 C6 C7 C8 161.6(3) no C9 O7 C8 O6 -7.7(6) no C9 O7 C8 C7 169.1(3) no N1 C7 C8 O6 -20.1(5) no C6 C7 C8 O6 102.4(4) no N1 C7 C8 O7 163.1(3) no C6 C7 C8 O7 -74.4(4) no C8 O7 C9 C10 -134.7(4) no C8 O7 C9 C11 103.3(4) no C2 O2 C12 O1 -33.6(4) no C2 O2 C12 C13 -150.3(4) no C2 O2 C12 C14 85.2(4) no C1 O1 C12 O2 21.9(4) no C1 O1 C12 C13 138.1(4) no C1 O1 C12 C14 -97.6(4) no C3 O3 C15 O4 -25.3(4) no C3 O3 C15 C16 -143.0(4) no C3 O3 C15 C17 92.0(4) no C4 O4 C15 O3 7.3(5) no C4 O4 C15 C16 124.7(4) no C4 O4 C15 C17 -111.0(4) no C7 N1 C18 C20A -62.6(5) no C7 N1 C18 C19 167.5(3) no C7 N1 C18 C20B -76.6(4) no N1 C18 C20A C21A 140.6(4) no C19 C18 C20A C21A -92.0(5) no C20B C18 C20A C21A -166.4(18) no N1 C18 C20A C25A -43.4(5) no C19 C18 C20A C25A 84.0(4) no C20B C18 C20A C25A 9.7(14) no C25A C20A C21A C22A .0 no C18 C20A C21A C22A 175.9(5) no C20A C21A C22A C23A .0 no C21A C22A C23A C24A .0 no C22A C23A C24A C25A .0 no C23A C24A C25A C20A .0 no C21A C20A C25A C24A .0 no C18 C20A C25A C24A -176.2(5) no C20A C18 C20B C21B 10.2(14) no N1 C18 C20B C21B 142.2(4) no C19 C18 C20B C21B -101.7(5) no C20A C18 C20B C25B -170.3(19) no N1 C18 C20B C25B -38.3(6) no C19 C18 C20B C25B 77.8(5) no C25B C20B C21B C22B .0 no C18 C20B C21B C22B 179.5(6) no C20B C21B C22B C23B .0 no C21B C22B C23B C24B .0 no C22B C23B C24B C25B .0 no C23B C24B C25B C20B .0 no C21B C20B C25B C24B .0 no C18 C20B C25B C24B -179.4(6) no