#------------------------------------------------------------------------------
#$Date: 2016-03-21 02:55:05 +0200 (Mon, 21 Mar 2016) $
#$Revision: 178411 $
#$URL: svn://www.crystallography.net/cod/cif/4/02/32/4023283.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_4023283
loop_
_publ_author_name
'Andrew DeAngelis'
'Patricia Panne'
'Glenn P. A. Yap'
'Joseph M. Fox'
_publ_section_title
;
 Rh-Catalyzed Formation of Dioxolanes from α-Alkyl Diazoesters:
 Diastereoselective Cycloadditions of Carbonyl Ylides with Selectivity
 over β-Hydride Elimination
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              1435
_journal_page_last               1439
_journal_paper_doi               10.1021/jo702308f
_journal_volume                  73
_journal_year                    2008
_chemical_formula_sum            'C33 H28 O4'
_chemical_formula_weight         488.55
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 104.041(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   16.765(9)
_cell_length_b                   12.101(7)
_cell_length_c                   25.379(14)
_cell_measurement_reflns_used    1014
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.21
_cell_measurement_theta_min      2.36
_cell_volume                     4995(5)
_computing_cell_refinement       'SAINT (Bruker, 2002)'
_computing_data_collection       'SMART (Bruker, 2002)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2001)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 836.6
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.935
_diffrn_measurement_device_type  'Bruker AXS APEX diffractometer'
_diffrn_measurement_method       ω
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0520
_diffrn_reflns_av_sigmaI/netI    0.0421
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            26918
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         28.18
_diffrn_reflns_theta_min         1.65
_diffrn_standards_decay_%        1
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.084
_exptl_absorpt_correction_T_max  0.9966
_exptl_absorpt_correction_T_min  0.9833
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2003)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.299
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2064
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.363
_refine_diff_density_min         -0.345
_refine_diff_density_rms         0.046
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.072
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     334
_refine_ls_number_reflns         5747
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.072
_refine_ls_R_factor_all          0.0702
_refine_ls_R_factor_gt           0.0493
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[σ²(Fo²)+(0.1000P)²] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1458
_refine_ls_wR_factor_ref         0.1652
_reflns_number_gt                4358
_reflns_number_total             5747
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo702308f-File008.cif
_cod_data_source_block           joef053
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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 
;
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4023283
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, y, -z+1/2'
'x+1/2, y+1/2, z'
'-x+1/2, y+1/2, -z+1/2'
'-x, -y, -z'
'x, -y, z-1/2'
'-x+1/2, -y+1/2, -z'
'x+1/2, -y+1/2, z-1/2'
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
O1 O 0.07866(7) 0.96171(9) 0.21087(4) 0.0245(3) Uani 1 1 d . . .
O2 O 0.13674(7) 0.86938(9) 0.15157(4) 0.0241(3) Uani 1 1 d . . .
O3 O 0.11308(8) 0.65524(10) 0.16023(5) 0.0340(3) Uani 1 1 d . . .
O4 O 0.21751(8) 0.64075(10) 0.23447(5) 0.0340(3) Uani 1 1 d . . .
C1 C 0.06981(9) 0.94227(13) 0.15481(6) 0.0233(3) Uani 1 1 d . . .
H1A H 0.0160 0.9052 0.1390 0.028 Uiso 1 1 calc R . .
C2 C 0.10331(10) 0.85700(13) 0.23520(6) 0.0234(3) Uani 1 1 d . . .
H2A H 0.0556 0.8051 0.2249 0.028 Uiso 1 1 calc R . .
C3 C 0.16940(10) 0.82195(13) 0.20393(6) 0.0229(3) Uani 1 1 d . . .
C4 C 0.07557(9) 1.04758(13) 0.12488(6) 0.0222(3) Uani 1 1 d . . .
C5 C 0.02094(10) 1.06758(13) 0.07616(6) 0.0234(3) Uani 1 1 d . . .
H5A H -0.0213 1.0155 0.0623 0.028 Uiso 1 1 calc R . .
C6 C 0.02658(10) 1.16514(13) 0.04607(6) 0.0235(3) Uani 1 1 d . . .
C7 C -0.02953(11) 1.18813(14) -0.00415(7) 0.0298(4) Uani 1 1 d . . .
H7A H -0.0717 1.1365 -0.0189 0.036 Uiso 1 1 calc R . .
C8 C -0.02363(12) 1.28399(15) -0.03173(7) 0.0357(4) Uani 1 1 d . . .
H8A H -0.0615 1.2982 -0.0655 0.043 Uiso 1 1 calc R . .
C9 C 0.03846(12) 1.36147(14) -0.01008(7) 0.0344(4) Uani 1 1 d . . .
H9A H 0.0419 1.4280 -0.0293 0.041 Uiso 1 1 calc R . .
C10 C 0.09384(11) 1.34185(14) 0.03834(7) 0.0296(4) Uani 1 1 d . . .
H10A H 0.1355 1.3947 0.0524 0.036 Uiso 1 1 calc R . .
C11 C 0.08957(10) 1.24342(13) 0.06770(7) 0.0243(3) Uani 1 1 d . . .
C12 C 0.14505(10) 1.22009(14) 0.11836(7) 0.0274(4) Uani 1 1 d . . .
H12A H 0.1875 1.2714 0.1332 0.033 Uiso 1 1 calc R . .
C13 C 0.13853(10) 1.12536(13) 0.14612(7) 0.0265(4) Uani 1 1 d . . .
H13A H 0.1764 1.1113 0.1799 0.032 Uiso 1 1 calc R . .
C14 C 0.12916(9) 0.86339(13) 0.29601(6) 0.0238(3) Uani 1 1 d . . .
C15 C 0.11972(10) 0.76728(14) 0.32592(7) 0.0282(4) Uani 1 1 d . . .
H15A H 0.1001 0.7010 0.3071 0.034 Uiso 1 1 calc R . .
C16 C 0.13856(11) 0.76887(14) 0.38156(7) 0.0305(4) Uani 1 1 d . . .
H16A H 0.1319 0.7036 0.4009 0.037 Uiso 1 1 calc R . .
C17 C 0.16786(10) 0.86644(14) 0.41063(7) 0.0280(4) Uani 1 1 d . . .
C18 C 0.18459(12) 0.87243(16) 0.46822(7) 0.0355(4) Uani 1 1 d . . .
H18A H 0.1762 0.8091 0.4883 0.043 Uiso 1 1 calc R . .
C19 C 0.21227(13) 0.96716(18) 0.49485(7) 0.0417(5) Uani 1 1 d . . .
H19A H 0.2221 0.9702 0.5333 0.050 Uiso 1 1 calc R . .
C20 C 0.22661(13) 1.06174(17) 0.46561(8) 0.0411(5) Uani 1 1 d . . .
H20A H 0.2476 1.1272 0.4847 0.049 Uiso 1 1 calc R . .
C21 C 0.21051(12) 1.05957(15) 0.41012(7) 0.0334(4) Uani 1 1 d . . .
H21A H 0.2200 1.1238 0.3910 0.040 Uiso 1 1 calc R . .
C22 C 0.17986(10) 0.96274(14) 0.38088(7) 0.0264(4) Uani 1 1 d . . .
C23 C 0.15908(10) 0.95835(13) 0.32313(6) 0.0249(3) Uani 1 1 d . . .
H23A H 0.1661 1.0223 0.3030 0.030 Uiso 1 1 calc R . .
C24 C 0.17099(10) 0.69624(13) 0.20111(6) 0.0254(3) Uani 1 1 d . . .
C25 C 0.10395(13) 0.53507(15) 0.15942(8) 0.0405(5) Uani 1 1 d . . .
H25A H 0.1589 0.4998 0.1683 0.049 Uiso 1 1 calc R . .
H25B H 0.0744 0.5107 0.1226 0.049 Uiso 1 1 calc R . .
C26 C 0.05720(14) 0.50036(17) 0.19972(9) 0.0492(5) Uani 1 1 d . . .
H26A H 0.0514 0.4198 0.1990 0.074 Uiso 1 1 calc R . .
H26B H 0.0026 0.5346 0.1905 0.074 Uiso 1 1 calc R . .
H26C H 0.0869 0.5240 0.2361 0.074 Uiso 1 1 calc R . .
C27 C 0.25547(10) 0.86783(13) 0.22896(6) 0.0242(3) Uani 1 1 d . . .
H27A H 0.2513 0.9480 0.2356 0.029 Uiso 1 1 calc R . .
H27B H 0.2779 0.8316 0.2644 0.029 Uiso 1 1 calc R . .
C28 C 0.31405(10) 0.84964(16) 0.19281(8) 0.0344(4) Uani 1 1 d . . .
C29 C 0.31048(12) 0.9166(2) 0.14767(8) 0.0484(6) Uani 1 1 d . . .
H29A H 0.2722 0.9758 0.1401 0.058 Uiso 1 1 calc R . .
C30 C 0.36265(15) 0.8970(3) 0.11370(10) 0.0760(10) Uani 1 1 d . . .
H30A H 0.3589 0.9419 0.0825 0.091 Uiso 1 1 calc R . .
C31 C 0.41961(17) 0.8133(4) 0.12496(16) 0.0958(14) Uani 1 1 d . . .
H31A H 0.4552 0.8003 0.1017 0.115 Uiso 1 1 calc R . .
C32 C 0.42472(14) 0.7485(2) 0.17004(17) 0.0841(12) Uani 1 1 d . . .
H32A H 0.4644 0.6910 0.1779 0.101 Uiso 1 1 calc R . .
C33 C 0.37256(11) 0.76602(17) 0.20433(11) 0.0507(6) Uani 1 1 d . . .
H33A H 0.3769 0.7209 0.2355 0.061 Uiso 1 1 calc R . .
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'
O O 0.0106 0.0060 '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_site_symmetry_1
_geom_angle_site_symmetry_3
_geom_angle_publ_flag
C1 O1 C2 103.67(12) . . ?
C3 O2 C1 108.65(12) . . ?
C24 O3 C25 115.80(13) . . ?
O1 C1 O2 105.39(12) . . ?
O1 C1 C4 111.38(13) . . ?
O2 C1 C4 110.10(13) . . ?
O1 C2 C14 112.36(13) . . ?
O1 C2 C3 100.79(12) . . ?
C14 C2 C3 118.09(13) . . ?
O2 C3 C24 111.37(12) . . ?
O2 C3 C27 110.47(13) . . ?
C24 C3 C27 110.84(13) . . ?
O2 C3 C2 101.74(12) . . ?
C24 C3 C2 108.43(13) . . ?
C27 C3 C2 113.68(13) . . ?
C5 C4 C13 119.90(15) . . ?
C5 C4 C1 119.77(14) . . ?
C13 C4 C1 120.32(14) . . ?
C4 C5 C6 120.96(15) . . ?
C7 C6 C5 122.04(15) . . ?
C7 C6 C11 118.96(15) . . ?
C5 C6 C11 118.99(14) . . ?
C8 C7 C6 120.76(17) . . ?
C7 C8 C9 120.12(17) . . ?
C10 C9 C8 120.68(16) . . ?
C9 C10 C11 120.55(17) . . ?
C10 C11 C12 122.54(16) . . ?
C10 C11 C6 118.93(15) . . ?
C12 C11 C6 118.53(15) . . ?
C13 C12 C11 121.18(15) . . ?
C12 C13 C4 120.43(15) . . ?
C23 C14 C15 119.57(16) . . ?
C23 C14 C2 122.62(14) . . ?
C15 C14 C2 117.79(14) . . ?
C16 C15 C14 120.81(16) . . ?
C15 C16 C17 120.85(15) . . ?
C16 C17 C18 122.37(16) . . ?
C16 C17 C22 118.70(16) . . ?
C18 C17 C22 118.93(16) . . ?
C19 C18 C17 120.96(17) . . ?
C18 C19 C20 120.25(17) . . ?
C21 C20 C19 120.52(19) . . ?
C20 C21 C22 120.75(18) . . ?
C21 C22 C23 122.55(15) . . ?
C21 C22 C17 118.54(16) . . ?
C23 C22 C17 118.90(15) . . ?
C14 C23 C22 121.12(15) . . ?
O4 C24 O3 124.32(15) . . ?
O4 C24 C3 122.58(14) . . ?
O3 C24 C3 112.99(13) . . ?
O3 C25 C26 109.94(17) . . ?
C28 C27 C3 112.34(13) . . ?
C33 C28 C29 118.9(2) . . ?
C33 C28 C27 120.45(19) . . ?
C29 C28 C27 120.62(17) . . ?
C30 C29 C28 120.2(3) . . ?
C31 C30 C29 120.5(3) . . ?
C32 C31 C30 119.6(2) . . ?
C31 C32 C33 120.9(3) . . ?
C28 C33 C32 119.9(3) . . ?
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
O1 C1 1.414(2) . ?
O1 C2 1.4262(19) . ?
O2 C3 1.4290(19) . ?
O2 C1 1.445(2) . ?
O3 C24 1.3327(19) . ?
O3 C25 1.462(2) . ?
O4 C24 1.206(2) . ?
C1 C4 1.499(2) . ?
C2 C14 1.500(2) . ?
C2 C3 1.570(2) . ?
C3 C24 1.523(2) . ?
C3 C27 1.533(2) . ?
C4 C5 1.370(2) . ?
C4 C13 1.419(2) . ?
C5 C6 1.422(2) . ?
C6 C7 1.416(2) . ?
C6 C11 1.426(2) . ?
C7 C8 1.371(3) . ?
C8 C9 1.410(3) . ?
C9 C10 1.369(3) . ?
C10 C11 1.416(2) . ?
C11 C12 1.420(2) . ?
C12 C13 1.364(2) . ?
C14 C23 1.370(2) . ?
C14 C15 1.418(2) . ?
C15 C16 1.370(2) . ?
C16 C17 1.416(3) . ?
C17 C18 1.422(2) . ?
C17 C22 1.429(2) . ?
C18 C19 1.354(3) . ?
C19 C20 1.416(3) . ?
C20 C21 1.368(3) . ?
C21 C22 1.415(2) . ?
C22 C23 1.423(2) . ?
C25 C26 1.492(3) . ?
C27 C28 1.514(2) . ?
C28 C33 1.390(3) . ?
C28 C29 1.392(3) . ?
C29 C30 1.389(3) . ?
C30 C31 1.374(5) . ?
C31 C32 1.372(5) . ?
C32 C33 1.391(4) . ?
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_site_symmetry_1
_geom_torsion_site_symmetry_2
_geom_torsion_site_symmetry_3
_geom_torsion_site_symmetry_4
_geom_torsion_publ_flag
C2 O1 C1 O2 -39.02(14) . . . . ?
C2 O1 C1 C4 -158.40(12) . . . . ?
C3 O2 C1 O1 16.30(15) . . . . ?
C3 O2 C1 C4 136.53(13) . . . . ?
C1 O1 C2 C14 170.92(13) . . . . ?
C1 O1 C2 C3 44.29(14) . . . . ?
C1 O2 C3 C24 125.97(14) . . . . ?
C1 O2 C3 C27 -110.40(14) . . . . ?
C1 O2 C3 C2 10.62(15) . . . . ?
O1 C2 C3 O2 -33.40(14) . . . . ?
C14 C2 C3 O2 -156.14(13) . . . . ?
O1 C2 C3 C24 -150.89(12) . . . . ?
C14 C2 C3 C24 86.37(16) . . . . ?
O1 C2 C3 C27 85.36(15) . . . . ?
C14 C2 C3 C27 -37.38(19) . . . . ?
O1 C1 C4 C5 -136.03(15) . . . . ?
O2 C1 C4 C5 107.43(16) . . . . ?
O1 C1 C4 C13 45.49(19) . . . . ?
O2 C1 C4 C13 -71.05(18) . . . . ?
C13 C4 C5 C6 0.5(2) . . . . ?
C1 C4 C5 C6 -178.00(14) . . . . ?
C4 C5 C6 C7 -179.48(15) . . . . ?
C4 C5 C6 C11 -0.9(2) . . . . ?
C5 C6 C7 C8 178.63(16) . . . . ?
C11 C6 C7 C8 0.0(2) . . . . ?
C6 C7 C8 C9 -0.4(3) . . . . ?
C7 C8 C9 C10 0.5(3) . . . . ?
C8 C9 C10 C11 -0.2(3) . . . . ?
C9 C10 C11 C12 -179.26(16) . . . . ?
C9 C10 C11 C6 -0.1(2) . . . . ?
C7 C6 C11 C10 0.2(2) . . . . ?
C5 C6 C11 C10 -178.43(15) . . . . ?
C7 C6 C11 C12 179.40(15) . . . . ?
C5 C6 C11 C12 0.8(2) . . . . ?
C10 C11 C12 C13 178.89(16) . . . . ?
C6 C11 C12 C13 -0.3(2) . . . . ?
C11 C12 C13 C4 -0.1(3) . . . . ?
C5 C4 C13 C12 0.0(2) . . . . ?
C1 C4 C13 C12 178.50(15) . . . . ?
O1 C2 C14 C23 -26.0(2) . . . . ?
C3 C2 C14 C23 90.73(19) . . . . ?
O1 C2 C14 C15 152.33(14) . . . . ?
C3 C2 C14 C15 -90.99(18) . . . . ?
C23 C14 C15 C16 1.4(2) . . . . ?
C2 C14 C15 C16 -176.99(15) . . . . ?
C14 C15 C16 C17 0.0(3) . . . . ?
C15 C16 C17 C18 177.19(17) . . . . ?
C15 C16 C17 C22 -1.9(3) . . . . ?
C16 C17 C18 C19 -179.74(17) . . . . ?
C22 C17 C18 C19 -0.7(3) . . . . ?
C17 C18 C19 C20 -1.2(3) . . . . ?
C18 C19 C20 C21 1.9(3) . . . . ?
C19 C20 C21 C22 -0.5(3) . . . . ?
C20 C21 C22 C23 177.31(17) . . . . ?
C20 C21 C22 C17 -1.4(3) . . . . ?
C16 C17 C22 C21 -178.92(16) . . . . ?
C18 C17 C22 C21 2.0(2) . . . . ?
C16 C17 C22 C23 2.3(2) . . . . ?
C18 C17 C22 C23 -176.79(16) . . . . ?
C15 C14 C23 C22 -0.9(2) . . . . ?
C2 C14 C23 C22 177.39(14) . . . . ?
C21 C22 C23 C14 -179.69(16) . . . . ?
C17 C22 C23 C14 -1.0(2) . . . . ?
C25 O3 C24 O4 4.2(3) . . . . ?
C25 O3 C24 C3 -172.13(15) . . . . ?
O2 C3 C24 O4 155.93(16) . . . . ?
C27 C3 C24 O4 32.5(2) . . . . ?
C2 C3 C24 O4 -92.9(2) . . . . ?
O2 C3 C24 O3 -27.69(19) . . . . ?
C27 C3 C24 O3 -151.11(14) . . . . ?
C2 C3 C24 O3 83.45(17) . . . . ?
C24 O3 C25 C26 78.2(2) . . . . ?
O2 C3 C27 C28 -56.39(18) . . . . ?
C24 C3 C27 C28 67.54(17) . . . . ?
C2 C3 C27 C28 -170.02(13) . . . . ?
C3 C27 C28 C33 -102.76(18) . . . . ?
C3 C27 C28 C29 77.5(2) . . . . ?
C33 C28 C29 C30 2.4(3) . . . . ?
C27 C28 C29 C30 -177.88(18) . . . . ?
C28 C29 C30 C31 -1.6(3) . . . . ?
C29 C30 C31 C32 0.1(4) . . . . ?
C30 C31 C32 C33 0.5(4) . . . . ?
C29 C28 C33 C32 -1.8(3) . . . . ?
C27 C28 C33 C32 178.46(17) . . . . ?
C31 C32 C33 C28 0.4(3) . . . . ?
