data_global _journal_name_full Org.Biomol.Chem. _journal_coden_Cambridge 0177 _journal_volume ? _journal_page_first ? _journal_year ? _publ_contact_author_name 'Ulrich Luening' _publ_contact_author_email LUENING@OC.UNI-KIEL.DE _publ_section_title ; Organocatalysis by Bimacrocyclic NHCs: Unexpected Formation of a Cyclic Hemiacetal Instead of a "gamma"-Butyrolactone ; loop_ _publ_author_name 'Ulrich Luening' C.Nather 'Ole Winkelmann' # Attachment 'xray.cif' data_luen25 _database_code_depnum_ccdc_archive 'CCDC 680462' _audit_creation_method SHELXL-97 _chemical_name_systematic ; ? ; _chemical_name_common ? _chemical_melting_point ? _chemical_formula_moiety ? _chemical_formula_sum 'C37 H53 Cl7 N2 O4' _chemical_formula_weight 837.96 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' N N 0.0061 0.0033 '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' Cl Cl 0.1484 0.1585 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' _symmetry_cell_setting monoclinic _symmetry_space_group_name_H-M 'C 2/c' 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' _cell_length_a 26.471(3) _cell_length_b 12.5614(7) _cell_length_c 16.7632(14) _cell_angle_alpha 90.00 _cell_angle_beta 128.674(9) _cell_angle_gamma 90.00 _cell_volume 4351.6(6) _cell_formula_units_Z 4 _cell_measurement_temperature 220(2) _cell_measurement_reflns_used 5299 _cell_measurement_theta_min 2.5 _cell_measurement_theta_max 23 _exptl_crystal_description block _exptl_crystal_colour colourless _exptl_crystal_size_max 0.2 _exptl_crystal_size_mid 0.05 _exptl_crystal_size_min 0.05 _exptl_crystal_density_meas ? _exptl_crystal_density_diffrn 1.279 _exptl_crystal_density_method 'not measured' _exptl_crystal_F_000 1760 _exptl_absorpt_coefficient_mu 0.494 _exptl_absorpt_correction_type none _exptl_absorpt_correction_T_min ? _exptl_absorpt_correction_T_max ? _exptl_absorpt_process_details ? _exptl_special_details ; ? ; _diffrn_ambient_temperature 220(2) _diffrn_radiation_wavelength 0.71073 _diffrn_radiation_type MoK\a _diffrn_radiation_source 'fine-focus sealed tube' _diffrn_radiation_monochromator graphite _diffrn_measurement_device_type 'STOE IPDS-1' _diffrn_measurement_method 'Phi scans' _diffrn_detector_area_resol_mean ? _diffrn_standards_number 0 _diffrn_standards_interval_count ? _diffrn_standards_interval_time 0 _diffrn_standards_decay_% ? _diffrn_reflns_number 9095 _diffrn_reflns_av_R_equivalents 0.0469 _diffrn_reflns_av_sigmaI/netI 0.0567 _diffrn_reflns_limit_h_min -31 _diffrn_reflns_limit_h_max 27 _diffrn_reflns_limit_k_min -14 _diffrn_reflns_limit_k_max 14 _diffrn_reflns_limit_l_min -18 _diffrn_reflns_limit_l_max 19 _diffrn_reflns_theta_min 2.82 _diffrn_reflns_theta_max 25.03 _reflns_number_total 3828 _reflns_number_gt 2266 _reflns_threshold_expression >2sigma(I) _computing_data_collection 'STOE IPDS-1 program package' _computing_cell_refinement 'STOE IPDS-1 program package' _computing_data_reduction 'STOE IPDS-1 program package' _computing_structure_solution 'SHELXS-97 (Sheldrick, 1990)' _computing_structure_refinement 'SHELXL-97 (Sheldrick, 1997)' _computing_molecular_graphics 'XP in SHELXTL-PC' _computing_publication_material 'XCIF in SHELXTL-PC' _refine_special_details ; Refinement of F^2^ against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F^2^, conventional R-factors R are based on F, with F set to zero for negative F^2^. The threshold expression of F^2^ > 2sigma(F^2^) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F^2^ are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. ; _refine_ls_structure_factor_coef Fsqd _refine_ls_matrix_type full _refine_ls_weighting_scheme calc _refine_ls_weighting_details 'calc w=1/[\s^2^(Fo^2^)+(0.1066P)^2^+0.0104P] where P=(Fo^2^+2Fc^2^)/3' _atom_sites_solution_primary direct _atom_sites_solution_secondary difmap _atom_sites_solution_hydrogens geom _refine_ls_hydrogen_treatment constr _refine_ls_extinction_method none _refine_ls_extinction_coef ? _refine_ls_number_reflns 3828 _refine_ls_number_parameters 255 _refine_ls_number_restraints 25 _refine_ls_R_factor_all 0.1122 _refine_ls_R_factor_gt 0.0628 _refine_ls_wR_factor_ref 0.1870 _refine_ls_wR_factor_gt 0.1606 _refine_ls_goodness_of_fit_ref 1.016 _refine_ls_restrained_S_all 1.173 _refine_ls_shift/su_max 0.000 _refine_ls_shift/su_mean 0.000 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 0.54506(16) 0.7494(2) 0.49454(19) 0.0712(9) Uani 1 1 d . . . O2 O 0.38466(12) 0.5570(2) 0.20630(18) 0.0513(6) Uani 1 1 d . . . N1 N 0.48820(13) 0.6881(2) 0.30216(19) 0.0374(6) Uani 1 1 d . . . C1 C 0.46560(17) 0.6476(3) 0.3545(2) 0.0437(8) Uani 1 1 d . . . C2 C 0.41330(17) 0.5787(3) 0.3057(3) 0.0477(9) Uani 1 1 d . . . C3 C 0.3931(2) 0.5375(4) 0.3581(4) 0.0673(11) Uani 1 1 d . . . H3 H 0.3583 0.4893 0.3262 0.081 Uiso 1 1 calc R . . C4 C 0.4248(3) 0.5683(4) 0.4580(4) 0.0756(13) Uani 1 1 d . . . H4 H 0.4113 0.5393 0.4938 0.091 Uiso 1 1 calc R . . C5 C 0.4744(2) 0.6384(4) 0.5066(3) 0.0684(12) Uani 1 1 d . . . H5 H 0.4942 0.6592 0.5742 0.082 Uiso 1 1 calc R . . C6 C 0.4956(2) 0.6792(3) 0.4548(3) 0.0553(10) Uani 1 1 d . . . C7 C 0.5751(3) 0.7888(5) 0.5968(3) 0.0920(17) Uani 1 1 d . . . H7A H 0.5419 0.8143 0.6009 0.110 Uiso 1 1 calc R . . H7B H 0.5992 0.7313 0.6467 0.110 Uiso 1 1 calc R . . C8 C 0.6186(4) 0.8749(6) 0.6193(4) 0.120(2) Uani 1 1 d . . . H8A H 0.6392 0.9001 0.6887 0.144 Uiso 1 1 calc R . . H8B H 0.5927 0.9339 0.5726 0.144 Uiso 1 1 calc R . . C9 C 0.6692(4) 0.8510(5) 0.6119(5) 0.111(2) Uani 1 1 d . . . H9A H 0.6990 0.9116 0.6392 0.133 Uiso 1 1 calc R . . H9B H 0.6494 0.8439 0.5395 0.133 Uiso 1 1 calc R . . C10 C 0.7073(3) 0.7535(6) 0.6661(5) 0.108(2) Uani 1 1 d . . . H10A H 0.6786 0.6917 0.6333 0.130 Uiso 1 1 calc R . . H10B H 0.7229 0.7566 0.7366 0.130 Uiso 1 1 calc R . . C11 C 0.7661(4) 0.7369(6) 0.6678(5) 0.124(3) Uani 1 1 d . . . H11A H 0.7528 0.7551 0.6003 0.149 Uiso 1 1 calc R . . H11B H 0.8002 0.7869 0.7171 0.149 Uiso 1 1 calc R . . C12 C 0.7942(3) 0.6275(6) 0.6946(5) 0.111(2) Uani 1 1 d . . . H12A H 0.8091 0.6100 0.7632 0.133 Uiso 1 1 calc R . . H12B H 0.8320 0.6273 0.6967 0.133 Uiso 1 1 calc R . . C13 C 0.7485(2) 0.5431(5) 0.6224(4) 0.0859(15) Uani 1 1 d . . . H13A H 0.7111 0.5429 0.6216 0.103 Uiso 1 1 calc R . . H13B H 0.7700 0.4740 0.6491 0.103 Uiso 1 1 calc R . . C14 C 0.7239(2) 0.5531(4) 0.5138(3) 0.0760(14) Uani 1 1 d . . . H14A H 0.6978 0.6180 0.4839 0.091 Uiso 1 1 calc R . . H14B H 0.7610 0.5609 0.5145 0.091 Uiso 1 1 calc R . . C15 C 0.6838(2) 0.4602(4) 0.4466(3) 0.0676(12) Uani 1 1 d . . . H15A H 0.7097 0.3951 0.4768 0.081 Uiso 1 1 calc R . . H15B H 0.6465 0.4526 0.4455 0.081 Uiso 1 1 calc R . . C16 C 0.6600(2) 0.4697(4) 0.3402(3) 0.0653(11) Uani 1 1 d . . . H16A H 0.6963 0.4828 0.3396 0.078 Uiso 1 1 calc R . . H16B H 0.6384 0.4037 0.3025 0.078 Uiso 1 1 calc R . . C17 C 0.5000 0.6304(3) 0.2500 0.0340(10) Uani 1 2 d S . . H17 H 0.5000 0.5556 0.2500 0.041 Uiso 1 2 calc SR . . C18 C 0.4854(2) 0.8021(3) 0.2768(3) 0.0539(10) Uani 1 1 d . . . H18A H 0.5108 0.8461 0.3387 0.065 Uiso 1 1 calc R . . H18B H 0.4407 0.8281 0.2317 0.065 Uiso 1 1 calc R . . C19 C 0.8971(3) 0.6646(4) 1.0907(4) 0.106(2) Uani 1 1 d D . . H19 H 0.9209 0.7300 1.1290 0.127 Uiso 1 1 calc R A 1 Cl1 Cl 0.5000 0.35635(9) 0.2500 0.0462(4) Uani 1 2 d S B 1 Cl2 Cl 0.8297(5) 0.6879(10) 0.9799(9) 0.199(6) Uani 0.381(8) 1 d PD C 1 Cl3 Cl 0.8945(5) 0.5693(8) 1.1652(6) 0.163(4) Uani 0.381(8) 1 d PD C 1 Cl4 Cl 0.9431(5) 0.5770(8) 1.0636(11) 0.188(6) Uani 0.381(8) 1 d PD C 1 Cl2' Cl 0.8347(3) 0.6916(4) 0.9597(3) 0.1096(16) Uani 0.619(8) 1 d PD C 2 Cl3' Cl 0.8553(3) 0.6610(5) 1.1442(2) 0.150(3) Uani 0.619(8) 1 d PD C 2 Cl4' Cl 0.9405(4) 0.5622(5) 1.1109(6) 0.227(6) Uani 0.619(8) 1 d PD C 2 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_23 _atom_site_aniso_U_13 _atom_site_aniso_U_12 O1 0.086(2) 0.082(2) 0.0374(13) -0.0139(13) 0.0344(14) -0.0106(17) O2 0.0474(13) 0.0596(15) 0.0507(14) -0.0045(11) 0.0325(12) -0.0087(11) N1 0.0451(15) 0.0365(14) 0.0341(13) 0.0003(11) 0.0265(12) 0.0023(11) C1 0.052(2) 0.0484(19) 0.0428(17) 0.0041(15) 0.0354(16) 0.0093(16) C2 0.048(2) 0.053(2) 0.0506(19) 0.0042(16) 0.0352(17) 0.0067(16) C3 0.070(3) 0.082(3) 0.078(3) 0.011(2) 0.060(2) 0.003(2) C4 0.087(3) 0.098(4) 0.077(3) 0.019(3) 0.068(3) 0.017(3) C5 0.086(3) 0.090(3) 0.052(2) 0.010(2) 0.054(2) 0.021(3) C6 0.064(2) 0.063(2) 0.0421(19) -0.0002(17) 0.0343(19) 0.0084(19) C7 0.110(4) 0.105(4) 0.049(2) -0.030(3) 0.043(3) -0.011(3) C8 0.151(6) 0.119(5) 0.070(3) -0.035(3) 0.060(4) -0.034(5) C9 0.128(6) 0.098(4) 0.083(4) -0.027(3) 0.055(4) -0.047(4) C10 0.101(4) 0.126(5) 0.095(4) -0.010(4) 0.061(4) -0.011(4) C11 0.105(5) 0.147(6) 0.104(4) -0.028(4) 0.057(4) -0.068(5) C12 0.059(3) 0.153(6) 0.089(4) 0.011(4) 0.031(3) 0.006(4) C13 0.066(3) 0.117(4) 0.066(3) 0.013(3) 0.037(2) 0.011(3) C14 0.052(2) 0.099(3) 0.062(3) 0.022(2) 0.028(2) 0.011(2) C15 0.058(2) 0.070(3) 0.074(3) 0.022(2) 0.041(2) 0.016(2) C16 0.058(2) 0.067(3) 0.077(3) 0.013(2) 0.046(2) 0.017(2) C17 0.036(2) 0.033(2) 0.0297(19) 0.000 0.0194(18) 0.000 C18 0.076(3) 0.0348(18) 0.060(2) -0.0002(15) 0.047(2) 0.0017(17) C19 0.118(5) 0.095(4) 0.083(3) -0.029(3) 0.052(4) -0.054(4) Cl1 0.0551(7) 0.0410(6) 0.0394(6) 0.000 0.0279(5) 0.000 Cl2 0.116(6) 0.134(7) 0.228(11) 0.028(7) 0.049(7) 0.012(5) Cl3 0.210(8) 0.143(7) 0.182(6) -0.014(5) 0.145(6) -0.064(6) Cl4 0.187(9) 0.101(5) 0.291(16) -0.047(7) 0.158(11) -0.054(6) Cl2' 0.148(4) 0.100(2) 0.0614(15) -0.0204(14) 0.056(2) -0.030(2) Cl3' 0.179(4) 0.184(5) 0.099(2) -0.051(2) 0.093(2) -0.114(4) Cl4' 0.234(8) 0.083(3) 0.160(5) -0.012(3) 0.023(4) 0.054(4) _geom_special_details ; All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes. ; 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 C6 1.357(5) . ? O1 C7 1.452(5) . ? O2 C2 1.359(4) . ? O2 C16 1.435(5) 2_655 ? N1 C17 1.315(3) . ? N1 C1 1.429(4) . ? N1 C18 1.483(4) . ? C1 C2 1.385(5) . ? C1 C6 1.395(5) . ? C2 C3 1.384(6) . ? C3 C4 1.379(6) . ? C3 H3 0.9400 . ? C4 C5 1.351(7) . ? C4 H4 0.9400 . ? C5 C6 1.395(6) . ? C5 H5 0.9400 . ? C7 C8 1.447(9) . ? C7 H7A 0.9800 . ? C7 H7B 0.9800 . ? C8 C9 1.451(10) . ? C8 H8A 0.9800 . ? C8 H8B 0.9800 . ? C9 C10 1.481(9) . ? C9 H9A 0.9800 . ? C9 H9B 0.9800 . ? C10 C11 1.553(10) . ? C10 H10A 0.9800 . ? C10 H10B 0.9800 . ? C11 C12 1.491(10) . ? C11 H11A 0.9800 . ? C11 H11B 0.9800 . ? C12 C13 1.491(8) . ? C12 H12A 0.9800 . ? C12 H12B 0.9800 . ? C13 C14 1.509(7) . ? C13 H13A 0.9800 . ? C13 H13B 0.9800 . ? C14 C15 1.504(7) . ? C14 H14A 0.9800 . ? C14 H14B 0.9800 . ? C15 C16 1.481(6) . ? C15 H15A 0.9800 . ? C15 H15B 0.9800 . ? C16 O2 1.435(5) 2_655 ? C16 H16A 0.9800 . ? C16 H16B 0.9800 . ? C17 N1 1.315(3) 2_655 ? C17 H17 0.9400 . ? C18 C18 1.508(8) 2_655 ? C18 H18A 0.9800 . ? C18 H18B 0.9800 . ? C19 Cl2 1.605(10) . ? C19 Cl4' 1.613(8) . ? C19 Cl3 1.761(8) . ? C19 Cl2' 1.770(6) . ? C19 Cl3' 1.810(7) . ? C19 Cl4 1.895(11) . ? C19 H19 0.9900 . ? 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 C6 O1 C7 116.8(4) . . ? C2 O2 C16 117.3(3) . 2_655 ? C17 N1 C1 125.2(3) . . ? C17 N1 C18 109.4(3) . . ? C1 N1 C18 123.7(3) . . ? C2 C1 C6 119.8(3) . . ? C2 C1 N1 120.5(3) . . ? C6 C1 N1 119.7(3) . . ? O2 C2 C3 124.2(4) . . ? O2 C2 C1 115.8(3) . . ? C3 C2 C1 120.0(4) . . ? C4 C3 C2 118.8(4) . . ? C4 C3 H3 120.6 . . ? C2 C3 H3 120.6 . . ? C5 C4 C3 122.7(4) . . ? C5 C4 H4 118.7 . . ? C3 C4 H4 118.7 . . ? C4 C5 C6 118.8(4) . . ? C4 C5 H5 120.6 . . ? C6 C5 H5 120.6 . . ? O1 C6 C1 115.2(4) . . ? O1 C6 C5 125.0(4) . . ? C1 C6 C5 119.8(4) . . ? C8 C7 O1 108.8(5) . . ? C8 C7 H7A 109.9 . . ? O1 C7 H7A 109.9 . . ? C8 C7 H7B 109.9 . . ? O1 C7 H7B 109.9 . . ? H7A C7 H7B 108.3 . . ? C7 C8 C9 116.7(6) . . ? C7 C8 H8A 108.1 . . ? C9 C8 H8A 108.1 . . ? C7 C8 H8B 108.1 . . ? C9 C8 H8B 108.1 . . ? H8A C8 H8B 107.3 . . ? C8 C9 C10 115.5(6) . . ? C8 C9 H9A 108.4 . . ? C10 C9 H9A 108.4 . . ? C8 C9 H9B 108.4 . . ? C10 C9 H9B 108.4 . . ? H9A C9 H9B 107.5 . . ? C9 C10 C11 114.4(7) . . ? C9 C10 H10A 108.7 . . ? C11 C10 H10A 108.7 . . ? C9 C10 H10B 108.7 . . ? C11 C10 H10B 108.7 . . ? H10A C10 H10B 107.6 . . ? C12 C11 C10 115.8(6) . . ? C12 C11 H11A 108.3 . . ? C10 C11 H11A 108.3 . . ? C12 C11 H11B 108.3 . . ? C10 C11 H11B 108.3 . . ? H11A C11 H11B 107.4 . . ? C11 C12 C13 114.3(5) . . ? C11 C12 H12A 108.7 . . ? C13 C12 H12A 108.7 . . ? C11 C12 H12B 108.7 . . ? C13 C12 H12B 108.7 . . ? H12A C12 H12B 107.6 . . ? C12 C13 C14 116.1(5) . . ? C12 C13 H13A 108.3 . . ? C14 C13 H13A 108.3 . . ? C12 C13 H13B 108.3 . . ? C14 C13 H13B 108.3 . . ? H13A C13 H13B 107.4 . . ? C15 C14 C13 114.1(4) . . ? C15 C14 H14A 108.7 . . ? C13 C14 H14A 108.7 . . ? C15 C14 H14B 108.7 . . ? C13 C14 H14B 108.7 . . ? H14A C14 H14B 107.6 . . ? C16 C15 C14 114.1(4) . . ? C16 C15 H15A 108.7 . . ? C14 C15 H15A 108.7 . . ? C16 C15 H15B 108.7 . . ? C14 C15 H15B 108.7 . . ? H15A C15 H15B 107.6 . . ? O2 C16 C15 107.5(3) 2_655 . ? O2 C16 H16A 110.2 2_655 . ? C15 C16 H16A 110.2 . . ? O2 C16 H16B 110.2 2_655 . ? C15 C16 H16B 110.2 . . ? H16A C16 H16B 108.5 . . ? N1 C17 N1 113.1(4) 2_655 . ? N1 C17 H17 123.4 2_655 . ? N1 C17 H17 123.4 . . ? N1 C18 C18 102.6(2) . 2_655 ? N1 C18 H18A 111.2 . . ? C18 C18 H18A 111.2 2_655 . ? N1 C18 H18B 111.2 . . ? C18 C18 H18B 111.2 2_655 . ? H18A C18 H18B 109.2 . . ? Cl2 C19 Cl4' 121.3(7) . . ? Cl2 C19 Cl3 115.9(7) . . ? Cl4' C19 Cl3 69.4(5) . . ? Cl2 C19 Cl2' 13.7(7) . . ? Cl4' C19 Cl2' 113.9(5) . . ? Cl3 C19 Cl2' 126.2(4) . . ? Cl2 C19 Cl3' 89.8(7) . . ? Cl4' C19 Cl3' 116.9(5) . . ? Cl3 C19 Cl3' 47.5(3) . . ? Cl2' C19 Cl3' 103.5(4) . . ? Cl2 C19 Cl4 104.2(6) . . ? Cl4' C19 Cl4 26.8(5) . . ? Cl3 C19 Cl4 95.2(5) . . ? Cl2' C19 Cl4 93.2(6) . . ? Cl3' C19 Cl4 142.0(5) . . ? Cl2 C19 H19 113.2 . . ? Cl4' C19 H19 116.5 . . ? Cl3 C19 H19 113.2 . . ? Cl2' C19 H19 111.5 . . ? Cl3' C19 H19 92.1 . . ? Cl4 C19 H19 113.2 . . ? _diffrn_measured_fraction_theta_max 0.992 _diffrn_reflns_theta_full 25.03 _diffrn_measured_fraction_theta_full 0.992 _refine_diff_density_max 0.398 _refine_diff_density_min -0.272 _refine_diff_density_rms 0.046