#------------------------------------------------------------------------------ #$Date: 2015-04-02 12:22:18 +0100 (Thu, 02 Apr 2015) $ #$Revision: 134621 $ #$URL: svn://www.crystallography.net/cod/cif/2/00/65/2006575.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_2006575 loop_ _publ_author_name ' Drouin, Marc' 'Hall, Dennis G.' 'Caill\'e, Alain-S\'ebastien' 'Pierre Deslongchamps' _publ_section_title ; Unique trans-syn-cis [6.6.7] Tricycle Derivative from Transannular Diels--Alder Contraction of a Model 15-Membered trans-cis-cis Macrocyclic Triene ; _journal_issue 10 _journal_name_full 'Acta Crystallographica Section C' _journal_page_first 1490 _journal_page_last 1493 _journal_paper_doi 10.1107/S0108270197005635 _journal_volume 53 _journal_year 1997 _chemical_formula_moiety 'C24 H32 O9 ' _chemical_formula_sum 'C24 H32 O9' _chemical_formula_weight 464.51 _chemical_name_systematic ; 5-Formyl-1,1,8,8-tetrakis(methoxycarbonyl)-(4E,11Z,13E)- cyclopentadeca-4,11,13-triene ; _space_group_IT_number 2 _symmetry_cell_setting triclinic _symmetry_space_group_name_Hall '-P 1' _symmetry_space_group_name_H-M 'P -1' _cell_angle_alpha 74.196(4) _cell_angle_beta 78.952(4) _cell_angle_gamma 73.558(4) _cell_formula_units_Z 2 _cell_length_a 6.9449(5) _cell_length_b 10.5817(5) _cell_length_c 17.8569(8) _cell_measurement_reflns_used 24 _cell_measurement_temperature 293 _cell_measurement_theta_max 40.00 _cell_measurement_theta_min 30.00 _cell_volume 1201.68(12) _computing_cell_refinement 'NRCCAD TRUANG' _computing_data_collection ; NRCCAD DATCOL (Le Page, White & Gabe, 1986) ; _computing_data_reduction 'NRCVAX DATRD2 (Gabe, Le Page, Charland, Lee & White, 1989)' _computing_molecular_graphics 'ORTEP in Xtal_GX (Johnson, 1995)' _computing_publication_material 'NRCVAX TABLES' _computing_structure_refinement 'NRCVAX LSTSQ' _computing_structure_solution 'NRCVAX SOLVER' _diffrn_ambient_temperature 293 _diffrn_measurement_device 'Nonius CAD-4 ' _diffrn_measurement_method '\q/2\q scan' _diffrn_radiation_monochromator graphite _diffrn_radiation_source 'xray tube' _diffrn_radiation_type 'Copper K\a ' _diffrn_radiation_wavelength 1.54184 _diffrn_reflns_av_R_equivalents .011 _diffrn_reflns_limit_h_max 7 _diffrn_reflns_limit_h_min -7 _diffrn_reflns_limit_k_max 11 _diffrn_reflns_limit_k_min 0 _diffrn_reflns_limit_l_max 21 _diffrn_reflns_limit_l_min -20 _diffrn_reflns_number 4975 _diffrn_reflns_reduction_process ; Equivalent reflections grouped and averaged (Le Page & Gabe, 1979) ; _diffrn_reflns_theta_max 69.57 _diffrn_reflns_theta_min 0.00 _diffrn_standards_decay_% <1 _diffrn_standards_interval_time 60 _diffrn_standards_number 2 _exptl_absorpt_coefficient_mu .81 _exptl_absorpt_correction_T_max 1.000 _exptl_absorpt_correction_T_min 1.000 _exptl_absorpt_correction_type none _exptl_crystal_colour colorless _exptl_crystal_density_diffrn 1.284 _exptl_crystal_density_meas ? _exptl_crystal_description prism _exptl_crystal_F_000 496 _exptl_crystal_size_max .30 _exptl_crystal_size_mid .10 _exptl_crystal_size_min .10 _refine_diff_density_max .22 _refine_diff_density_min -.18 _refine_ls_extinction_coef '0.27(7) x 10^-6^' _refine_ls_extinction_method 'Larson (1970)' _refine_ls_goodness_of_fit_obs 1.41 _refine_ls_hydrogen_treatment noref _refine_ls_matrix_type full _refine_ls_number_parameters 299 _refine_ls_number_reflns 3057 _refine_ls_R_factor_all .067 _refine_ls_R_factor_obs .046 _refine_ls_shift/esd_max .001 _refine_ls_structure_factor_coef F _refine_ls_weighting_details 'w = 1/[\s^2^(F) + 0.0008F^2^]' _refine_ls_weighting_scheme calc _refine_ls_wR_factor_all .068 _refine_ls_wR_factor_obs .061 _reflns_number_observed 3057 _reflns_number_total 4369 _reflns_observed_criterion 'Inet > 2.5\s(Inet)' _[local]_cod_data_source_file fg1245.cif _[local]_cod_data_source_block 1 _[local]_cod_chemical_formula_sum_orig 'C24 H32 O9 ' _cod_depositor_comments ; The following automatic conversions were performed: '_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic' 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 'Triclinic' changed to 'triclinic' 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 The following automatic conversions were performed: '_exptl_crystal_density_meas' value 'not measured' was changed to '?' - the value is perceived as not measured. Automatic conversion script Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas The following automatic conversions were performed: '_refine_ls_weighting_scheme' value '1/[\s^2^(F) + 0.0008F^2^]' 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) + 0.0008F^2^]'. Automatic conversion script Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas ; _cod_database_code 2006575 loop_ _symmetry_equiv_pos_as_xyz x,y,z -x,-y,-z 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 O1 .0569(14) .0468(12) .0838(16) -.0092(10) -.0363(12) -.0077(11) O2 .0668(15) .0465(12) .0960(18) -.0214(11) -.0278(13) -.0149(11) O3 .0342(12) .0869(16) .0586(13) -.0145(11) -.0127(10) -.0099(11) O4 .0364(11) .0740(14) .0472(11) -.0198(10) -.0005(9) -.0082(10) O5 .0399(13) .0631(14) .127(2) -.0044(11) -.0349(14) -.0265(14) O6 .0435(12) .0543(12) .0944(16) -.0080(10) -.0264(11) -.0334(12) O7 .0369(13) .0941(18) .0915(18) -.0039(12) -.0127(12) .0252(14) O8 .0431(12) .0612(13) .0558(12) -.0151(10) -.0047(10) .0076(10) O9 .0749(19) .155(3) .094(2) -.069(2) .0338(15) -.060(2) C1 .0336(14) .0419(14) .0411(14) -.0144(11) -.0076(11) -.0093(11) C2 .0360(15) .0451(15) .0439(14) -.0149(12) -.0070(11) -.0113(11) C3 .0459(17) .0435(15) .0439(15) -.0169(12) -.0051(12) -.0097(12) C4 .0467(16) .0426(15) .0442(15) -.0150(12) .0013(12) -.0130(12) C5 .0514(18) .0470(16) .0459(15) -.0163(13) -.0019(13) -.0161(12) C6 .0396(16) .0465(15) .0528(16) -.0150(12) -.0043(13) -.0101(13) C7 .0289(14) .0435(14) .0508(15) -.0106(11) -.0044(11) -.0132(12) C8 .0313(14) .0374(14) .0442(14) -.0119(11) -.0050(11) -.0078(11) C9 .0369(15) .0430(15) .0529(16) -.0122(12) -.0005(12) -.0133(12) C10 .0483(17) .0474(16) .0461(15) -.0136(13) -.0011(13) -.0134(13) C11 .0445(17) .0513(17) .0500(16) -.0154(13) -.0009(13) -.0159(13) C12 .0496(18) .0589(18) .0427(15) -.0215(14) .0015(13) -.0140(13) C13 .0501(18) .0618(18) .0482(16) -.0234(14) .0016(13) -.0224(14) C14 .0475(17) .0451(15) .0525(16) -.0131(13) -.0035(13) -.0161(13) C15 .0430(16) .0477(15) .0424(14) -.0176(12) -.0075(12) -.0107(12) C16 .0391(15) .0476(16) .0419(14) -.0144(12) -.0050(12) -.0126(12) C17 .074(2) .0536(19) .086(2) -.0044(17) -.036(2) -.0006(17) C18 .0389(15) .0412(14) .0474(15) -.0162(12) -.0065(12) -.0071(12) C19 .0452(19) .085(2) .0599(19) -.0185(17) .0083(15) -.0123(17) C20 .0338(15) .0396(14) .0519(16) -.0134(12) -.0091(12) -.0031(12) C21 .064(2) .069(2) .095(3) -.0243(17) -.031(2) -.0285(19) C22 .0359(16) .0458(15) .0512(16) -.0129(12) -.0081(13) -.0099(12) C23 .065(2) .071(2) .0580(19) -.0236(18) -.0169(17) .0090(16) C24 .066(2) .085(2) .063(2) -.0353(19) .0136(17) -.0343(18) 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 O1 .9125(3) .0382(2) .11936(13) .0609(8) Uani O2 1.1460(3) .1040(2) .15732(14) .0660(9) Uani O3 1.5257(3) -.1976(2) .19846(12) .0604(8) Uani O4 1.4227(3) -.1389(2) .08009(11) .0530(7) Uani O5 .3459(3) -.6428(2) .31138(16) .0740(9) Uani O6 .5866(3) -.8230(2) .29158(14) .0591(8) Uani O7 .9204(3) -.8506(3) .42205(16) .0856(10) Uani O8 .5973(3) -.8206(2) .46907(12) .0574(7) Uani O9 1.4614(4) -.4531(3) .07866(17) .0992(14) Uani C1 1.1658(4) -.1350(3) .18807(14) .0374(8) Uani C2 1.0733(4) -.2294(3) .16093(15) .0401(8) Uani C3 1.1520(4) -.3793(3) .19856(15) .0433(9) Uani C4 1.1400(4) -.4703(3) .14900(15) .0440(9) Uani C5 .9933(5) -.5333(3) .15684(16) .0467(9) Uani C6 .8139(4) -.5322(3) .21703(16) .0458(9) Uani C7 .8583(4) -.6534(3) .28672(16) .0403(8) Uani C8 .6753(4) -.6736(2) .34892(15) .0372(8) Uani C9 .5689(4) -.5453(3) .38083(16) .0440(9) Uani C10 .6976(5) -.4972(3) .41996(16) .0470(9) Uani C11 .7379(4) -.3773(3) .39489(17) .0477(10) Uani C12 .8467(5) -.3206(3) .43411(16) .0492(10) Uani C13 .9198(5) -.2124(3) .40298(17) .0504(10) Uani C14 .9242(4) -.1358(3) .31901(17) .0474(9) Uani C15 1.1426(4) -.1600(3) .27812(15) .0426(9) Uani C16 1.0770(4) .0148(3) .15384(15) .0416(9) Uani C17 .8227(6) .1787(3) .0855(2) .0731(11) Uani C18 1.3925(4) -.1609(3) .15814(16) .0416(8) Uani C19 1.6309(5) -.1707(4) .04553(19) .0658(11) Uani C20 .5159(4) -.7089(3) .31546(16) .0418(9) Uani C21 .4408(5) -.8653(3) .2616(2) .0694(14) Uani C22 .7494(4) -.7919(3) .41624(16) .0436(9) Uani C23 .6473(5) -.9271(3) .53821(19) .0668(11) Uani C24 1.3115(6) -.4956(4) .0885(2) .0673(12) Uani H2a .92743 -.20154 .17302 .0516 Uiso H2b 1.1053 -.21771 .10454 .0516 Uiso H3a 1.28807 -.39696 .20422 .0544 Uiso H3b 1.08644 -.40385 .24887 .0544 Uiso H5 1.00819 -.58450 .12029 .0581 Uiso H6a .70181 -.53668 .19357 .0563 Uiso H6b .77882 -.44933 .23542 .0563 Uiso H7a .96356 -.64101 .31073 .051 Uiso H7b .9106 -.73446 .26644 .051 Uiso H9a .51585 -.47285 .33785 .0543 Uiso H9b .45535 -.56541 .41895 .0543 Uiso H10 .74331 -.55514 .46589 .0573 Uiso H11 .68660 -.32047 .34968 .0586 Uiso H12 .86314 -.36671 .48573 .0604 Uiso H13 .97335 -.17704 .43434 .0634 Uiso H14a .87789 -.03968 .31736 .0584 Uiso H14b .84216 -.16584 .29236 .0584 Uiso H15a 1.21148 -.2529 .29949 .0544 Uiso H15b 1.20962 -.10072 .29066 .0544 Uiso H17a .71078 .17676 .06184 .0812 Uiso H17b .91980 .21747 .04697 .0812 Uiso H17c .78427 .22548 .12721 .0812 Uiso H19a 1.62875 -.15275 -.01002 .0734 Uiso H19b 1.69398 -.26358 .06715 .0734 Uiso H19c 1.69752 -.11197 .05766 .0734 Uiso H21a .51044 -.95015 .24833 .0859 Uiso H21b .40073 -.79742 .21553 .0859 Uiso H21c .33293 -.87704 .30333 .0859 Uiso H23a .52547 -.94445 .57019 .0745 Uiso H23b .72671 -.90013 .56678 .0745 Uiso H23c .723 -1.00811 .52169 .0745 Uiso H24 1.29480 -.54500 .05537 .0811 Uiso loop_ _atom_type_symbol _atom_type_scat_dispersion_real _atom_type_scat_dispersion_imag _atom_type_scat_source C .017 .009 'International Tables Vol. IV Table 2.2B' H .000 .000 'International Tables Vol. IV Table 2.2B' O .047 .032 'International Tables Vol. IV Table 2.2B' 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 C2 C1 C15 112.3(2) no C2 C1 C16 112.8(2) no C2 C1 C18 109.0(2) no C15 C1 C16 108.9(2) no C15 C1 C18 107.9(2) no C16 C1 C18 105.6(2) no C1 C2 C3 113.3(2) no C1 C2 H2a 107.6 no C1 C2 H2b 109.4 no C3 C2 H2a 110.6 no C3 C2 H2b 107.7 no H2a C2 H2b 108.1 no C2 C3 C4 112.5(2) no C2 C3 H3a 109.9 no C2 C3 H3b 112.0 no C4 C3 H3a 106.0 no C4 C3 H3b 110.4 no H3a C3 H3b 105.8 no C3 C4 C5 126.5(2) no C3 C4 C24 115.9(2) no C5 C4 C24 117.6(2) no C4 C5 C6 127.6(2) no C4 C5 H5 115.3 no C6 C5 H5 117.2 no C5 C6 C7 110.3(2) no C5 C6 H6a 108.6 no C5 C6 H6b 109.8 no C7 C6 H6a 109.7 no C7 C6 H6b 109.0 no H6a C6 H6b 109.4 no C6 C7 C8 115.3(2) no C6 C7 H7a 106.9 no C6 C7 H7b 107.9 no C8 C7 H7a 109.8 no C8 C7 H7b 108.2 no H7a C7 H7b 108.6 no C7 C8 C9 112.6(2) no C7 C8 C20 111.3(2) no C7 C8 C22 108.2(2) no C9 C8 C20 107.0(2) no C9 C8 C22 109.7(2) no C20 C8 C22 107.9(2) no C8 C9 C10 116.0(2) no C8 C9 H9a 108.5 no C8 C9 H9b 107.8 no C10 C9 H9a 109.1 no C10 C9 H9b 107.6 no H9a C9 H9b 107.9 no C9 C10 C11 123.5(3) no C9 C10 H10 116.3 no C11 C10 H10 120.2 no C10 C11 C12 125.9(3) no C10 C11 H11 118.2 no C12 C11 H11 115.8 no C11 C12 C13 125.9(3) no C11 C12 H12 114.5 no C13 C12 H12 119.5 no C12 C13 C14 126.0(3) no C12 C13 H13 119.9 no C14 C13 H13 114.1 no C13 C14 C15 109.9(2) no C13 C14 H14a 108.6 no C13 C14 H14b 109.7 no C15 C14 H14a 106.8 no C15 C14 H14b 109.3 no H14a C14 H14b 112.4 no C1 C15 C14 115.6(2) no C1 C15 H15a 108.8 no C1 C15 H15b 107.6 no C14 C15 H15a 107.7 no C14 C15 H15b 108.7 no H15a C15 H15b 108.2 no C1 C16 O1 113.7(2) no C1 C16 O2 124.0(2) no O1 C16 O2 122.3(3) no O1 C17 H17a 105.0 no O1 C17 H17b 110.0 no O1 C17 H17c 107.3 no H17a C17 H17b 111.1 no H17a C17 H17c 114.0 no H17b C17 H17c 109.2 no C1 C18 O3 125.3(2) no C1 C18 O4 110.8(2) no O3 C18 O4 123.8(3) no O4 C19 H19a 106.4 no O4 C19 H19b 109.7 no O4 C19 H19c 107.6 no H19a C19 H19b 112.1 no H19a C19 H19c 110.8 no H19b C19 H19c 110.1 no C8 C20 O5 124.8(2) no C8 C20 O6 112.2(2) no O5 C20 O6 123.0(3) no O6 C21 H21a 106.3 no O6 C21 H21b 107.3 no O6 C21 H21c 106.8 no H21a C21 H21b 110.7 no H21a C21 H21c 110.6 no H21b C21 H21c 114.6 no C8 C22 O7 125.4(3) no C8 C22 O8 111.2(2) no O7 C22 O8 123.4(3) no O8 C23 H23a 109.8 no O8 C23 H23b 109.1 no O8 C23 H23c 108.4 no H23a C23 H23b 110.9 no H23a C23 H23c 108.4 no H23b C23 H23c 110.2 no C4 C24 O9 124.6(3) no C4 C24 H24 114.3 no O9 C24 H24 121.1 no C16 O1 C17 116.0(2) no C18 O4 C19 115.8(2) no C20 O6 C21 115.2(2) no C22 O8 C23 117.0(2) no loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_site_symmetry_1 _geom_bond_site_symmetry_2 _geom_bond_distance _geom_bond_publ_flag C1 C2 . . 1.546(3) no C1 C15 . . 1.541(4) no C1 C16 . . 1.527(4) no C1 C18 . . 1.534(4) no C2 C3 . . 1.528(4) no C2 H2a . . .970 no C2 H2b . . .970 no C3 C4 . . 1.502(4) no C3 H3a . . .930 no C3 H3b . . .930 no C4 C5 . . 1.334(4) no C4 C24 . . 1.464(4) no C5 C6 . . 1.481(4) no C5 H5 . . .930 no C6 C7 . . 1.531(4) no C6 H6a . . .970 no C6 H6b . . .970 no C7 C8 . . 1.542(4) no C7 H7a . . .970 no C7 H7b . . .970 no C8 C9 . . 1.550(3) no C8 C20 . . 1.526(4) no C8 C22 . . 1.527(4) no C9 C10 . . 1.495(4) no C9 H9a . . .970 no C9 H9b . . .970 no C10 C11 . . 1.317(4) no C10 H10 . . .930 no C11 C12 . . 1.452(4) no C11 H11 . . .930 no C12 C13 . . 1.323(4) no C12 H12 . . .930 no C13 C14 . . 1.497(4) no C13 H13 . . .930 no C14 C15 . . 1.535(4) no C14 H14a . . .970 no C14 H14b . . .970 no C15 H15a . . .970 no C15 H15b . . .970 no C16 O1 . . 1.331(3) no C16 O2 . . 1.193(3) no C17 O1 . . 1.448(4) no C17 H17a . . .960 no C17 H17b . . .960 no C17 H17c . . .960 no C18 O3 . . 1.194(3) no C18 O4 . . 1.334(3) no C19 O4 . . 1.442(4) no C19 H19a . . .960 no C19 H19b . . .960 no C19 H19c . . .960 no C20 O5 . . 1.194(3) no C20 O6 . . 1.322(3) no C21 O6 . . 1.452(4) no C21 H21a . . .960 no C21 H21b . . .960 no C21 H21c . . .960 no C22 O7 . . 1.183(4) no C22 O8 . . 1.320(3) no C23 O8 . . 1.449(4) no C23 H23a . . .960 no C23 H23b . . .960 no C23 H23c . . .960 no C24 O9 . . 1.212(4) no C24 H24 . . .930 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 C17 O1 C16 C1 -179.7(3) no C17 O1 C16 O2 .6(4) no C19 O4 C18 C1 -175.1(3) no C19 O4 C18 O3 3.9(4) no C21 O6 C20 O5 -1.6(4) no C21 O6 C20 C8 177.9(2) no C23 O8 C22 O7 1.9(4) no C23 O8 C22 C8 -177.2(2) no C15 C1 C2 C3 -53.1(3) no C16 C1 C2 C3 -176.6(2) no C2 C1 C15 C14 -61.2(3) no C16 C1 C15 C14 64.5(3) no C18 C1 C2 C3 66.4(3) no C2 C1 C18 O4 58.7(3) no C15 C1 C18 O3 1.9(4) no C15 C1 C18 O4 -179.1(2) no C16 C1 C18 O3 118.2(3) no C16 C1 C18 O4 -62.7(3) no C18 C1 C16 O1 130.8(2) no C18 C1 C16 O2 -49.5(3) no C18 C1 C15 C14 178.7(2) no C2 C1 C16 O1 11.8(3) no C2 C1 C16 O2 -168.4(3) no C15 C1 C16 O1 -113.6(3) no C15 C1 C16 O2 66.2(4) no C2 C1 C18 O3 -120.3(3) no C1 C2 C3 C4 -154.3(2) no C2 C3 C4 C5 -97.1(3) no C2 C3 C4 C24 85.6(3) no C24 C4 C5 C6 175.0(3) no C3 C4 C5 C6 -2.2(5) yes C3 C4 C24 O9 3.1(5) no C5 C4 C24 O9 -174.5(4) no C4 C5 C6 C7 -93.2(4) no C5 C6 C7 C8 -172.9(2) no C6 C7 C8 C20 65.5(3) no C6 C7 C8 C22 -176.2(2) no C6 C7 C8 C9 -54.7(3) no C20 C8 C9 C10 177.2(2) no C22 C8 C9 C10 60.4(3) no C7 C8 C9 C10 -60.2(3) no C7 C8 C20 O6 61.2(3) no C9 C8 C20 O5 4.1(4) no C7 C8 C20 O5 -119.3(3) no C20 C8 C22 O8 -55.0(3) no C22 C8 C20 O5 122.1(3) no C22 C8 C20 O6 -57.4(3) no C7 C8 C22 O7 5.3(4) no C7 C8 C22 O8 -175.6(2) no C9 C8 C22 O7 -117.9(3) no C9 C8 C22 O8 61.2(3) no C9 C8 C20 O6 -175.4(2) no C20 C8 C22 O7 125.9(3) no C8 C9 C10 C11 118.9(3) no C9 C10 C11 C12 174.3(3) yes C10 C11 C12 C13 166.8(4) yes C11 C12 C13 C14 -6.9(6) yes C12 C13 C14 C15 -109.2(4) no C13 C14 C15 C1 157.8(3) no