#------------------------------------------------------------------------------ #$Date: 2025-08-18 23:52:38 +0100 (Mon, 18 Aug 2025) $ #$Revision: 301791 $ #$URL: svn://www.crystallography.net/cod/cif/2/00/47/2004741.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_2004741 loop_ _publ_author_name 'Billing, D. G.' 'Boeyens, J. C. A.' 'Cook, L. M.' 'Lai, L.-L.' 'Reid, D. H.' _publ_section_title 5,6,7,8-Tetrahydro-2,3-diphenyl-2a\l^4^-thia-2,3,4a,8a-tetraazacyclopent[cd]azulene-1[2H],4[3H]-diselone _journal_issue 4 _journal_name_full 'Acta Crystallographica Section C' _journal_page_first 970 _journal_page_last 973 _journal_paper_doi 10.1107/S0108270195012637 _journal_volume 52 _journal_year 1996 _chemical_formula_sum 'C19 H18 N4 S Se2' _chemical_formula_weight 492.35 _space_group_IT_number 2 _symmetry_cell_setting triclinic _symmetry_space_group_name_Hall '-P 1' _symmetry_space_group_name_H-M 'P -1' _atom_type_scat_source IntTabC _cell_angle_alpha 89.11(4) _cell_angle_beta 88.27(4) _cell_angle_gamma 86.79(4) _cell_formula_units_Z 4 _cell_length_a 9.395(7) _cell_length_b 14.373(8) _cell_length_c 14.530(5) _cell_measurement_reflns_used 25 _cell_measurement_temperature 293(2) _cell_measurement_theta_max 20 _cell_measurement_theta_min 10 _cell_volume 1957.9(19) _diffrn_measurement_device 'Enraf-Nonius CAD-4' _diffrn_measurement_method \w/2\q _diffrn_radiation_type MoK\a _diffrn_radiation_wavelength 0.71073 _diffrn_reflns_av_R_equivalents 0.02 _diffrn_reflns_limit_h_max 11 _diffrn_reflns_limit_h_min -1 _diffrn_reflns_limit_k_max 18 _diffrn_reflns_limit_k_min -18 _diffrn_reflns_limit_l_max 18 _diffrn_reflns_limit_l_min -20 _diffrn_reflns_number 9942 _diffrn_reflns_theta_max 30 _diffrn_standards_decay_% random _diffrn_standards_interval_time 60 _diffrn_standards_number 3 _exptl_absorpt_coefficient_mu 3.894 _exptl_absorpt_correction_T_max 0.999 _exptl_absorpt_correction_T_min 0.985 _exptl_absorpt_correction_type 'ABSORB (Xtal3.2; Hall, Flack & Stewart, 1992)' _exptl_crystal_colour 'Light yellow' _exptl_crystal_density_diffrn 1.670 _exptl_crystal_description Tabular _exptl_crystal_size_max 1.1 _exptl_crystal_size_mid 0.7 _exptl_crystal_size_min 0.5 _refine_diff_density_max 1.17 _refine_diff_density_min -0.80 _refine_ls_extinction_method none _refine_ls_goodness_of_fit_obs 1.070 _refine_ls_hydrogen_treatment 'see text' _refine_ls_number_parameters 471 _refine_ls_number_reflns 8411 _refine_ls_R_factor_obs 0.0791 _refine_ls_shift/esd_max 0.413 _refine_ls_structure_factor_coef Fsqd _refine_ls_weighting_details 'w=1/[\s^2^(F~o~^2^) + (0.0610P)^2^], P = [(F~o~^2^) + 2F~c~^2^]/3' _refine_ls_weighting_scheme calc _refine_ls_wR_factor_obs 0.1052 _reflns_number_observed 5641 _reflns_number_total 8411 _reflns_observed_criterion F>4\s(F) _cod_data_source_file hr1038.cif _cod_data_source_block hr1038a _cod_depositor_comments ; The following automatic conversions were performed: '_refine_ls_weighting_scheme' value ' w=1/[\s^2^(F~o~^2^) + (0.0610P)^2^], P = [(F~o~^2^) + 2F~c~^2^]/3' was changed to 'calc'. New tag '_refine_ls_weighting_details' was created. The value of the new tag was set to 'w=1/[\s^2^(F~o~^2^) + (0.0610P)^2^], P = [(F~o~^2^) + 2F~c~^2^]/3'. Automatic conversion script Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas ; _cod_original_cell_volume 1958(2) _cod_original_formula_sum 'C19 H18 N4 S1 Se2' _cod_database_code 2004741 loop_ _symmetry_equiv_pos_as_xyz x,y,z -x,-y,-z loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Se(1A) .18690(10) .84890(10) 1.02610(10) .0660(10) Se(2A) .20190(10) .71060(10) .48820(10) .0530(10) S(1A) .41210(10) .76270(10) .75860(10) .0380(10) N(1A) .3838(3) .7999(2) .8830(2) .0420(10) N(2A) .1611(3) .8053(2) .8357(2) .0370(10) N(3A) .1674(3) .7670(2) .6760(2) .0360(10) N(4A) .3914(3) .7289(2) .6333(2) .0400(10) C(1A) .2516(3) .8161(2) .9108(2) .0390(10) C(2A) .2297(3) .7794(2) .7566(2) .0340(10) C(3A) .2622(3) .7359(2) .6030(2) .0360(10) C(4A) .0039(4) .8162(3) .8494(3) .0570(10) C(5A) -.0698(4) .7343(3) .8149(3) .0610(10) C(6A) -.0844(4) .7332(3) .7131(3) .0580(10) C(7A) .0157(4) .7924(3) .6604(2) .0540(10) C(8A) .5068(3) .8038(2) .9377(2) .0390(10) C(9A) .5648(4) .7226(3) .9762(2) .0470(10) C(10A) .6879(4) .7253(3) 1.0253(3) .0590(10) C(11A) .7510(4) .8070(4) 1.0359(3) .0630(10) C(12A) .6960(5) .8862(3) .9975(3) .0690(10) C(13A) .5718(4) .8860(3) .9470(3) .0570(10) C(14A) .5180(3) .6976(2) .5832(2) .0390(10) C(15A) .5566(5) .6054(3) .5810(3) .0630(10) C(16A) .6883(5) .5758(4) .5410(3) .0780(10) C(17A) .7760(4) .6388(4) .5048(3) .0740(10) C(18A) .7367(4) .7305(4) .5058(3) .0680(10) C(19A) .6064(4) .7612(3) .5457(3) .0540(10) Se(1B) .31130(10) .47310(10) .15850(10) .0630(10) Se(2B) .28000(10) 1.01400(10) .30030(10) .0530(10) S(1B) .07610(10) .74090(10) .25160(10) .0350(10) N(1B) .1081(3) .6151(2) .2143(2) .0410(10) N(2B) .3290(3) .6604(2) .2179(2) .0360(10) N(3B) .3183(3) .8221(2) .2525(2) .0340(10) N(4B) .0938(3) .8682(2) .2823(2) .0370(10) C(1B) .2415(3) .5869(2) .1990(2) .0390(10) C(2B) .2580(3) .7411(2) .2402(2) .0330(10) C(3B) .2223(3) .8975(2) .2782(2) .0360(10) C(4B) .4847(3) .6397(2) .2276(3) .0480(10) C(5B) .5443(4) .6893(3) .3082(3) .0500(10) C(6B) .5730(4) .7902(2) .2866(3) .0500(10) C(7B) .4665(3) .8360(2) .2219(2) .0430(10) C(8B) -.0112(3) .5595(2) .2035(3) .0440(10) C(9B) -.0797(4) .5259(3) .2805(3) .0670(10) C(10B) -0.1995(5) .4770(3) .2714(5) .095(2) C(11B) -0.2516(5) .4608(3) .1883(6) .101(2) C(12B) -0.1820(6) .4946(3) .1110(5) .093(2) C(13B) -.0629(4) .5446(3) .1192(3) .0660(10) C(14B) -.0326(3) .9229(2) .3072(2) .0370(10) C(15B) -.0677(4) .9386(3) .3993(3) .0500(10) C(16B) -0.1971(5) .9857(3) .4215(3) .0650(10) C(17B) -0.2890(4) 1.0136(3) .3539(4) .0620(10) C(18B) -0.2536(4) .9965(3) .2633(3) .0630(10) C(19B) -0.1238(4) .9515(2) .2391(3) .0490(10) H(4A1) -.0312(4) .8722(3) .8173(3) .068 H(4A2) -.0191(4) .8238(3) .9145(3) .068 H(5A1) -.0172(4) .6776(3) .8339(3) .073 H(5A2) -0.1642(4) .7339(3) .8439(3) .073 H(6A1) -0.1813(4) .7539(3) .6988(3) .070 H(6A2) -.0691(4) .6694(3) .6925(3) .070 H(7A1) -.0017(4) .7875(3) .5952(2) .064 H(7A2) -.0044(4) .8569(3) .6773(2) .064 H(9A) .5215(4) .6666(3) .9692(2) .057 H(10A) .7279(4) .6708(3) 1.0513(3) .071 H(11A) .8332(4) .8082(4) 1.0699(3) .075 H(12A) .7408(5) .9416(3) 1.0047(3) .083 H(13A) .5338(4) .9407(3) .9202(3) .068 H(15A) .4958(5) .5620(3) .6059(3) .076 H(16A) .7155(5) .5127(4) .5394(3) .093 H(17A) .8641(4) .6190(4) .4790(3) .088 H(18A) .7970(4) .7734(4) .4796(3) .082 H(19A) .5797(4) .8245(3) .5468(2) .065 H(4B1) .5343(3) .6583(2) .1714(3) .055(11) H(4B2) .5026(3) .5730(2) .2358(3) .096(16) H(5B1) .6325(4) .6565(3) .3261(3) .060 H(5B2) .4773(4) .6869(3) .3602(3) .060 H(6B1) .5702(4) .8247(2) .3436(3) .061 H(6B2) .6681(4) .7932(2) .2592(3) .061 H(7B1) .4809(3) .9022(2) .2178(2) .051 H(7B2) .4829(3) .8103(2) .1609(2) .051 H(9B) -.0452(4) .5362(3) .3386(3) .080 H(10B) -0.2458(5) .4546(3) .3239(5) .114 H(11B) -0.3329(5) .4274(3) .1831(6) .121 H(12B) -0.2159(6) .4834(3) .0530(5) .112 H(13B) -.0177(4) .5684(3) .0668(3) .079 H(15B) -.0061(4) .9180(3) .4451(3) .060 H(16B) -0.2213(5) .9985(3) .4827(3) .078 H(17B) -0.3760(4) 1.0443(3) .3694(4) .075 H(18B) -0.3170(4) 1.0152(3) .2178(3) .075 H(19B) -.0989(4) .9408(2) .1775(3) .059 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 C(2A) S(1A) N(1A) 83.10(10) yes C(2A) S(1A) N(4A) 83.00(10) yes N(1A) S(1A) N(4A) 166.10(10) yes C(1A) N(1A) S(1A) 116.0(2) yes C(2A) N(2A) C(1A) 114.5(3) yes C(2A) N(3A) C(3A) 114.8(3) yes C(3A) N(4A) S(1A) 116.0(2) yes C(14A) N(4A) S(1A) 117.1(2) yes N(1A) C(1A) N(2A) 109.0(3) yes N(1A) C(1A) Se(1A) 127.3(2) yes N(2A) C(1A) Se(1A) 123.7(2) yes N(3A) C(2A) N(2A) 125.4(3) yes N(3A) C(2A) S(1A) 117.2(2) yes N(2A) C(2A) S(1A) 117.3(2) yes N(4A) C(3A) N(3A) 108.7(3) yes N(4A) C(3A) Se(2A) 128.3(2) yes N(3A) C(3A) Se(2A) 122.9(2) yes C(2B) S(1B) N(1B) 82.90(10) yes C(2B) S(1B) N(4B) 82.80(10) yes N(1B) S(1B) N(4B) 165.60(10) yes C(1B) N(1B) S(1B) 115.9(2) yes C(2B) N(2B) C(1B) 114.7(3) yes C(2B) N(3B) C(3B) 115.0(3) yes C(3B) N(4B) S(1B) 116.1(2) yes N(1B) C(1B) N(2B) 108.8(3) yes N(1B) C(1B) Se(1B) 127.9(2) yes N(2B) C(1B) Se(1B) 123.3(2) yes N(3B) C(2B) N(2B) 125.0(3) yes N(3B) C(2B) S(1B) 117.4(2) yes N(2B) C(2B) S(1B) 117.5(2) yes N(4B) C(3B) N(3B) 108.6(3) yes N(4B) C(3B) Se(2B) 128.5(2) yes N(3B) C(3B) Se(2B) 122.9(2) yes C(1A) N(1A) C(8A) 126.3(3) no C(8A) N(1A) S(1A) 117.7(2) no C(2A) N(2A) C(4A) 125.1(3) no C(1A) N(2A) C(4A) 120.2(3) no C(2A) N(3A) C(7A) 123.2(3) no C(3A) N(3A) C(7A) 121.7(3) no C(3A) N(4A) C(14A) 126.9(3) no N(2A) C(4A) C(5A) 112.3(3) no N(2A) C(4A) H(4A1) 109.1(2) no C(5A) C(4A) H(4A1) 109.1(2) no N(2A) C(4A) H(4A2) 109.1(2) no C(5A) C(4A) H(4A2) 109.1(2) no H(4A1) C(4A) H(4A2) 107.9 no C(6A) C(5A) C(4A) 114.5(3) no C(6A) C(5A) H(5A1) 108.6(2) no C(4A) C(5A) H(5A1) 108.6(2) no C(6A) C(5A) H(5A2) 108.6(2) no C(4A) C(5A) H(5A2) 108.6(2) no H(5A1) C(5A) H(5A2) 107.6 no C(5A) C(6A) C(7A) 114.6(3) no C(5A) C(6A) H(6A1) 108.6(2) no C(7A) C(6A) H(6A1) 108.6(2) no C(5A) C(6A) H(6A2) 108.6(2) no C(7A) C(6A) H(6A2) 108.6(2) no H(6A1) C(6A) H(6A2) 107.6 no N(3A) C(7A) C(6A) 113.8(3) no N(3A) C(7A) H(7A1) 108.8(2) no C(6A) C(7A) H(7A1) 108.8(2) no N(3A) C(7A) H(7A2) 108.8(2) no C(6A) C(7A) H(7A2) 108.8(2) no H(7A1) C(7A) H(7A2) 107.7 no C(13A) C(8A) C(9A) 120.3(3) no C(13A) C(8A) N(1A) 120.5(3) no C(9A) C(8A) N(1A) 119.1(3) no C(10A) C(9A) C(8A) 119.2(4) no C(10A) C(9A) H(9A) 120.4(2) no C(8A) C(9A) H(9A) 120.4(2) no C(11A) C(9A) C(9A) 120.5(4) no C(11A) C(10A) H(10A) 119.8(3) no C(9A) C(10A) H(10A) 119.8(2) no C(12A) C(11A) C(10A) 120.6(4) no C(12A) C(11A) H(11A) 119.7(3) no C(10A) C(11A) H(11A) 119.7(3) no C(11A) C(12A) C(13A) 120.5(4) no C(11A) C(12A) H(12A) 119.8(3) no C(13A) C(12A) H(12A) 119.8(3) no C(8A) C(13A) C(12A) 118.9(4) no C(8A) C(13A) H(13A) 120.6(2) no C(12A) C(13A) H(13A) 120.6(3) no C(15A) C(14A) C(19A) 120.3(3) no C(15A) C(14A) N(4A) 119.7(3) no C(19A) C(14A) N(4A) 119.8(3) no C(14A) C(15A) C(16A) 119.5(4) no C(14A) C(15A) H(15A) 120.2(2) no C(16A) C(15A) H(15A) 120.2(3) no C(17A) C(16A) C(15A) 120.1(4) no C(17A) C(16A) H(16A) 119.9(3) no C(15A) C(16A) H(16A) 119.9(3) no C(18A) C(17A) C(16A) 120.3(4) no C(18A) C(17A) H(17A) 119.8(3) no C(16A) C(17A) H(17A) 119.8(3) no C(17A) C(18A) C(19A) 120.4(4) no C(17A) C(18A) H(18A) 119.8(3) no C(19A) C(18A) H(18A) 119.8(3) no C(14A) C(19A) C(18A) 119.4(4) no C(14A) C(19A) H(19A) 120.3(2) no C(18A) C(19A) H(19A) 120.3(3) no C(1B) N(1B) C(8B) 125.0(3) no C(8B) N(1B) S(1B) 119.2(2) no C(2B) N(2B) C(4B) 125.4(3) no C(1B) N(2B) C(4B) 119.0(3) no C(2B) N(3B) C(7B) 121.5(3) no C(3B) N(3B) C(7B) 122.1(3) no C(3B) N(4B) C(14B) 125.7(3) no C(14B) N(4B) S(1B) 118.2(2) no N(2B) C(4B) C(5B) 112.7(3) no N(2B) C(4B) H(4B1) 109.1(2) no C(5B) C(4B) H(4B1) 109.1(2) no N(2B) C(4B) H(4B2) 109.1(2) no C(5B) C(4B) H(4B2) 109.1(2) no H(4B1) C(4B) H(4B2) 107.8 no C(4B) C(5B) C(6B) 113.0(3) no C(4B) C(5B) H(5B1) 109.0(2) no C(6B) C(5B) H(5B1) 109.0(2) no C(4B) C(5B) H(5B2) 109.0(2) no C(6B) C(5B) H(5B2) 109.0(2) no H(5B1) C(5B) H(5B2) 107.8 no C(7B) C(6B) C(5B) 112.7(3) no C(7B) C(6B) H(6B1) 109.0(2) no C(5B) C(6B) H(6B1) 109.0(2) no C(7B) C(6B) H(6B2) 109.0(2) no C(5B) C(6B) H(6B2) 109.0(2) no H(6B1) C(6B) H(6B2) 107.8 no N(3B) C(7B) C(6B) 112.1(3) no N(3B) C(7B) H(7B1) 109.2(2) no C(6B) C(7B) H(7B1) 109.2(2) no N(3B) C(7B) H(7B2) 109.2(2) no C(6B) C(7B) H(7B2) 109.2(2) no H(7B1) C(7B) H(7B2) 107.9 no C(13B) C(8B) C(9B) 119.8(4) no C(13B) C(8B) N(1B) 121.2(3) no C(9B) C(8B) N(1B) 118.9(4) no C(8B) C(9B) C(10B) 119.5(5) no C(8B) C(9B) H(9B) 120.3(2) no C(10B) C(9B) H(9B) 120.3(4) no C(11B) C(10B) C(9B) 121.6(5) no C(11B) C(10B) H(10B) 119.2(3) no C(9B) C(10B) H(10B) 119.2(4) no C(10B) C(11B) C(12B) 118.6(5) no C(10B) C(11B) H(11B) 120.7(3) no C(12B) C(11B) H(11B) 120.7(3) no C(13B) C(12B) C(11B) 120.4(5) no C(13B) C(12B) H(12B) 119.8(4) no C(11B) C(12B) H(12B) 119.8(3) no C(8B) C(13B) C(12B) 120.1(5) no C(8B) C(13B) H(13B) 120.0(2) no C(12B) C(13B) H(13B) 120.0(4) no C(19B) C(14B) C(15B) 121.3(3) no C(19B) C(14B) N(4B) 118.5(3) no C(15B) C(14B) N(4B) 120.0(3) no C(14B) C(15B) C(16B) 118.5(4) no C(14B) C(15B) H(15B) 120.7(2) no C(16B) C(15B) H(15B) 120.7(3) no C(17B) C(16B) C(15B) 120.4(4) no C(17B) C(16B) H(16B) 119.8(3) no C(15B) C(16B) H(16B) 119.8(3) no C(16B) C(17B) C(18B) 120.3(4) no C(16B) C(17B) H(17B) 119.8(3) no C(18B) C(17B) H(17B) 119.8(2) no C(17B) C(18B) C(19B) 120.4(4) no C(17B) C(18B) H(18B) 119.8(2) no C(19B) C(18B) H(18B) 119.8(3) no C(14B) C(19B) C(18B) 119.0(4) no C(14B) C(19B) H(19B) 120.5(2) no C(18B) C(19B) H(19B) 120.5(3) no loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_distance _geom_bond_publ_flag Se(1A) C(1A) 1.824(3) yes Se(2A) C(3A) 1.826(3) yes S(1A) C(2A) 1.719(3) yes S(1A) N(1A) 1.899(3) yes S(1A) N(4A) 1.910(3) yes N(1A) C(1A) 1.304(4) yes N(2A) C(2A) 1.348(4) yes N(2A) C(1A) 1.419(4) yes N(3A) C(2A) 1.344(4) yes N(3A) C(3A) 1.425(4) yes N(4A) C(3A) 1.302(4) yes Se(1B) C(1B) 1.826(3) yes Se(2B) C(3B) 1.825(3) yes S(1B) C(2B) 1.712(3) yes S(1B) N(1B) 1.901(3) yes S(1B) N(4B) 1.907(3) yes N(1B) C(1B) 1.309(4) yes N(2B) C(2B) 1.344(4) yes N(2B) C(1B) 1.411(4) yes N(3B) C(2B) 1.340(4) yes N(3B) C(3B) 1.418(4) yes N(4B) C(3B) 1.300(4) yes N(1A) C(8A) 1.427(4) no N(2A) C(4A) 1.484(4) no N(3A) C(7A) 1.474(4) no N(4A) C(14A) 1.430(4) no C(4A) C(5A) 1.500(5) no C(4A) H(4A1) 0.97 no C(4A) H(4A2) 0.97 no C(5A) C(6A) 1.490(5) no C(5A) H(5A1) 0.97 no C(5A) H(5A2) 0.97 no C(6A) C(7A) 1.491(6) no C(6A) H(6A1) 0.97 no C(6A) H(6A2) 0.97 no C(7A) H(7A1) 0.97 no C(7A) H(7A2) 0.97 no C(8A) C(13A) 1.370(5) no C(8A) C(9A) 1.378(5) no C(9A) C(10A) 1.379(5) no C(9A) H(9A) 0.93 no C(10A) C(11A) 1.358(6) no C(10A) H(10A) 0.93 no C(11A) C(12A) 1.343(6) no C(11A) H(11A) 0.93 no C(12A) C(13A) 1.397(6) no C(12A) H(12A) 0.93 no C(13A) H(13A) 0.93 no C(14A) C(15A) 1.355(5) no C(14A) C(19A) 1.365(5) no C(15A) C(16A) 1.398(6) no C(15A) H(15A) 0.93 no C(16A) C(17A) 1.348(7) no C(16A) H(16A) 0.93 no C(17A) C(18A) 1.348(7) no C(17A) H(17A) 0.93 no C(18A) C(19A) 1.391(5) no C(18A) H(18A) 0.93 no C(19A) H(19A) 0.93 no N(1B) C(8B) 1.427(4) no N(2B) C(4B) 1.487(4) no N(3B) C(7B) 1.472(4) no N(4B) C(14B) 1.428(4) no C(4B) C(5B) 1.517(5) no C(4B) H(4B1) .97 no C(4B) H(4B2) .97 no C(5B) C(6B) 1.517(5) no C(5B) H(5B1) .97 no C(5B) H(5B2) .97 no C(6B) C(7B) 1.510(5) no C(6B) H(6B1) .97 no C(6B) H(6B2) .97 no C(7B) H(7B1) .97 no C(7B) H(7B2) .97 no C(8B) C(13B) 1.356(5) no C(8B) C(9B) 1.369(5) no C(9B) C(10B) 1.370(6) no C(9B) H(9B) .93 no C(10B) C(11B) 1.345(9) no C(10B) H(10B) .93 no C(11B) C(12B) 1.379(8) no C(11B) H(11B) .93 no C(12B) C(13B) 1.372(6) no C(12B) H(12B) .93 no C(13B) H(13B) .93 no C(14B) C(19B) 1.372(5) no C(14B) C(15B) 1.387(5) no C(15B) C(16B) 1.390(5) no C(15B) H(15B) .93 no C(16B) C(17B) 1.369(6) no C(16B) H(16B) .93 no C(17B) C(18B) 1.370(6) no C(17B) H(17B) .93 no C(18B) C(19B) 1.386(5) no C(18B) H(18B) .93 no C(19B) H(19B) .93 no loop_ _cod_related_entry_id _cod_related_entry_database _cod_related_entry_code 1 PubChem 139054849