# Supplementary Material (ESI) for ChemComm # This journal is © The Royal Society of Chemistry, 1999 # CCDC Number: 182/1303 data_rw19a _audit_creation_method SHELXL _chemical_name_systematic ; ? ; _chemical_name_common ? _chemical_formula_moiety '[(C~5~H~5~)(CO)~3~Cr]~4~Sb~2~S' _chemical_formula_structural ? _chemical_formula_analytical ? _chemical_formula_sum 'C32 H20 Cr4 O12 S Sb2' _chemical_formula_weight 1080.04 _chemical_melting_point ? _chemical_compound_source ? 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' 'S' 'S' 0.1246 0.1234 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' 'Cr' 'Cr' 0.3209 0.6236 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' 'Sb' 'Sb' -0.5866 1.5461 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' _symmetry_cell_setting Monoclinic _symmetry_space_group_name_H-M P2~1~/c loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' '-x, y+1/2, -z+1/2' '-x, -y, -z' 'x, -y-1/2, z-1/2' _cell_length_a 20.181(5) _cell_length_b 12.400(4) _cell_length_c 15.209(8) _cell_angle_alpha 90.00 _cell_angle_beta 106.26(3) _cell_angle_gamma 90.00 _cell_volume 3653.7(24) _cell_formula_units_Z 4 _cell_measurement_temperature 300(2) _cell_measurement_reflns_used ? _cell_measurement_theta_min ? _cell_measurement_theta_max ? _exptl_crystal_description polyhedron _exptl_crystal_colour black _exptl_crystal_size_max 0.3 _exptl_crystal_size_mid 0.3 _exptl_crystal_size_min 0.3 _exptl_crystal_density_meas ? _exptl_crystal_density_diffrn 1.963 _exptl_crystal_density_method ? _exptl_crystal_F_000 2088 _exptl_absorpt_coefficient_mu 2.722 _exptl_absorpt_correction_type ? _exptl_absorpt_correction_T_min ? _exptl_absorpt_correction_T_max ? _exptl_special_details ; ? ; _diffrn_ambient_temperature 300(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 CAD4 _diffrn_measurement_method '\w-scan' _diffrn_standards_number 3 _diffrn_standards_interval_count ? _diffrn_standards_interval_time 60 _diffrn_standards_decay_% ? _diffrn_reflns_number 6573 _diffrn_reflns_av_R_equivalents 0.1140 _diffrn_reflns_av_sigmaI/netI 0.2999 _diffrn_reflns_limit_h_min -23 _diffrn_reflns_limit_h_max 0 _diffrn_reflns_limit_k_min 0 _diffrn_reflns_limit_k_max 14 _diffrn_reflns_limit_l_min -17 _diffrn_reflns_limit_l_max 18 _diffrn_reflns_theta_min 1.05 _diffrn_reflns_theta_max 24.99 _reflns_number_total 6413 _reflns_number_observed 2446 _reflns_observed_criterion >2sigma(I) _computing_data_collection Nonius _computing_cell_refinement Nonius _computing_data_reduction MolEN _computing_structure_solution 'SHELXS-86 (Sheldrick, 1990)' _computing_structure_refinement 'SHELXL-93 (Sheldrick, 1993)' _computing_molecular_graphics 'SHELXTL/PC' _computing_publication_material 'SHELXL-93 (Sheldrick, 1993)' _refine_special_details ; Refinement on F^2^ for ALL reflections except for 0 with very negative F^2^ or flagged by the user for potential systematic errors. Weighted R- factors wR and all goodnesses 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 observed criterion of F^2^ > 2sigma(F^2^) is used only for calculating _R_factor_obs 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 w=1/[\s^2^(Fo^2^)+(0.0139P)^2^+0.0000P] 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 'riding mode' _refine_ls_extinction_method none _refine_ls_extinction_coef ? _refine_ls_number_reflns 6413 _refine_ls_number_parameters 450 _refine_ls_number_restraints 0 _refine_ls_R_factor_all 0.2016 _refine_ls_R_factor_obs 0.0836 _refine_ls_wR_factor_all 0.1262 _refine_ls_wR_factor_obs 0.1011 _refine_ls_goodness_of_fit_all 0.864 _refine_ls_goodness_of_fit_obs 1.191 _refine_ls_restrained_S_all 0.864 _refine_ls_restrained_S_obs 1.191 _refine_ls_shift/esd_max 0.026 _refine_ls_shift/esd_mean 0.001 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_thermal_displace_type _atom_site_occupancy _atom_site_calc_flag _atom_site_refinement_flags _atom_site_disorder_group Sb1 Sb 0.19403(5) 0.15907(9) 0.25166(8) 0.0408(3) Uani 1 d . . Sb2 Sb 0.29276(5) -0.06347(9) 0.20476(8) 0.0391(3) Uani 1 d . . Cr1 Cr 0.29695(13) 0.3203(2) 0.3080(2) 0.0508(8) Uani 1 d . . Cr2 Cr 0.08006(12) 0.1786(2) 0.3267(2) 0.0491(8) Uani 1 d . . Cr3 Cr 0.41238(12) -0.1718(2) 0.3116(2) 0.0424(7) Uani 1 d . . Cr4 Cr 0.19466(13) -0.1983(2) 0.0824(2) 0.0448(8) Uani 1 d . . S S 0.2434(2) -0.0099(4) 0.3280(3) 0.0479(12) Uani 1 d . . O11 O 0.3325(8) 0.4617(13) 0.4704(12) 0.124(7) Uani 1 d . . O12 O 0.1648(6) 0.4417(9) 0.2828(8) 0.066(4) Uani 1 d . . O13 O 0.3333(6) 0.1651(11) 0.4638(8) 0.070(4) Uani 1 d . . O21 O 0.0457(7) 0.3029(11) 0.1524(9) 0.081(5) Uani 1 d . . O22 O 0.0269(7) 0.3735(11) 0.3940(10) 0.085(5) Uani 1 d . . O23 O 0.1969(6) 0.2578(12) 0.4781(8) 0.077(4) Uani 1 d . . O31 O 0.4702(6) -0.3725(11) 0.2666(11) 0.109(6) Uani 1 d . . O32 O 0.4365(6) -0.1119(11) 0.1338(9) 0.082(5) Uani 1 d . . O33 O 0.2972(6) -0.3169(11) 0.3115(9) 0.086(5) Uani 1 d . . O41 O 0.3284(6) -0.2962(12) 0.0825(9) 0.100(6) Uani 1 d . . O42 O 0.1501(6) -0.2176(10) 0.2525(8) 0.072(4) Uani 1 d . . O43 O 0.1701(7) -0.4338(11) 0.0908(9) 0.096(5) Uani 1 d . . C11 C 0.3198(10) 0.4059(15) 0.4066(16) 0.080(7) Uani 1 d . . C12 C 0.2140(9) 0.3878(15) 0.2913(12) 0.056(5) Uani 1 d . . C13 C 0.3129(9) 0.2211(14) 0.4017(13) 0.053(5) Uani 1 d . . C14 C 0.3006(13) 0.3455(28) 0.1678(16) 0.106(10) Uani 1 d . . H14 H 0.2620(13) 0.3559(28) 0.1181(16) 0.128 Uiso 1 calc R . C15 C 0.3298(19) 0.2507(22) 0.1977(25) 0.135(17) Uani 1 d . . H15 H 0.3140(19) 0.1824(22) 0.1768(25) 0.161 Uiso 1 calc R . C16 C 0.3861(14) 0.2754(27) 0.2635(25) 0.123(13) Uani 1 d . . H16 H 0.4185(14) 0.2239(27) 0.2918(25) 0.147 Uiso 1 calc R . C17 C 0.3930(13) 0.3799(28) 0.2864(17) 0.095(9) Uani 1 d . . H17 H 0.4267(13) 0.4131(28) 0.3330(17) 0.113 Uiso 1 calc R . C18 C 0.3378(14) 0.4255(17) 0.2237(19) 0.080(7) Uani 1 d . . H18 H 0.3270(14) 0.4986(17) 0.2194(19) 0.096 Uiso 1 calc R . C21 C 0.0589(10) 0.2565(18) 0.2201(14) 0.076(7) Uani 1 d . . C22 C 0.0468(9) 0.2988(15) 0.3674(14) 0.064(6) Uani 1 d . . C23 C 0.1579(8) 0.2288(15) 0.4169(11) 0.049(5) Uani 1 d . . C24 C 0.0392(13) 0.0661(18) 0.4152(16) 0.096(8) Uani 1 d . . H24 H 0.0403(13) 0.0745(18) 0.4763(16) 0.116 Uiso 1 calc R . C25 C 0.0875(10) 0.0177(15) 0.3806(18) 0.075(7) Uani 1 d . . H25 H 0.1309(10) -0.0054(15) 0.4147(18) 0.090 Uiso 1 calc R . C26 C 0.0620(10) 0.0089(14) 0.2893(17) 0.069(6) Uani 1 d . . H26 H 0.0824(10) -0.0293(14) 0.2511(17) 0.082 Uiso 1 calc R . C27 C -0.0019(11) 0.0680(22) 0.2597(19) 0.106(9) Uani 1 d . . H27 H -0.0297(11) 0.0809(22) 0.2006(19) 0.128 Uiso 1 calc R . C28 C -0.0106(12) 0.0990(17) 0.3400(21) 0.093(9) Uani 1 d . . H28 H -0.0481(12) 0.1403(17) 0.3441(21) 0.112 Uiso 1 calc R . C31 C 0.4458(9) -0.2952(17) 0.2793(14) 0.069(6) Uani 1 d . . C32 C 0.4247(8) -0.1342(15) 0.1996(11) 0.052(5) Uani 1 d . . C33 C 0.3388(8) -0.2558(14) 0.3073(12) 0.051(5) Uani 1 d . . C34 C 0.5098(9) -0.1614(23) 0.4190(16) 0.108(10) Uani 1 d . . H34 H 0.5480(9) -0.2044(23) 0.4213(16) 0.130 Uiso 1 calc R . C35 C 0.4560(12) -0.1811(16) 0.4556(13) 0.086(8) Uani 1 d . . H35 H 0.4510(12) -0.2435(16) 0.4871(13) 0.104 Uiso 1 calc R . C36 C 0.4119(10) -0.0981(22) 0.4397(14) 0.079(7) Uani 1 d . . H36 H 0.3718(10) -0.0945(22) 0.4584(14) 0.095 Uiso 1 calc R . C37 C 0.4340(12) -0.0210(17) 0.3929(13) 0.083(8) Uani 1 d . . H37 H 0.4138(12) 0.0457(17) 0.3746(13) 0.099 Uiso 1 calc R . C38 C 0.4931(12) -0.0622(20) 0.3780(13) 0.080(7) Uiso 1 d . . H38 H 0.5187(12) -0.0274(20) 0.3443(13) 0.096 Uiso 1 calc R . C41 C 0.2794(8) -0.2520(16) 0.0826(13) 0.070(7) Uani 1 d . . C42 C 0.1725(8) -0.2086(14) 0.1927(13) 0.057(5) Uani 1 d . . C43 C 0.1778(9) -0.3379(18) 0.0875(11) 0.064(6) Uani 1 d . . C44 C 0.1861(11) -0.1352(21) -0.0535(13) 0.083(7) Uani 1 d . . H44 H 0.2221(11) -0.1432(21) -0.0800(13) 0.099 Uiso 1 calc R . C45 C 0.1314(12) -0.2001(18) -0.0599(13) 0.086(7) Uani 1 d . . H45 H 0.1230(12) -0.2617(18) -0.0963(13) 0.103 Uiso 1 calc R . C46 C 0.0894(9) -0.1680(20) -0.0089(14) 0.088(8) Uani 1 d . . H46 H 0.0501(9) -0.2027(20) -0.0028(14) 0.106 Uiso 1 calc R . C47 C 0.1180(10) -0.0718(17) 0.0325(13) 0.073(6) Uiso 1 d . . H47 H 0.1009(10) -0.0304(17) 0.0721(13) 0.088 Uiso 1 calc R . C48 C 0.1744(10) -0.0490(16) 0.0057(13) 0.070(6) Uani 1 d . . H48 H 0.2017(10) 0.0122(16) 0.0222(13) 0.084 Uiso 1 calc R . 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 Sb1 0.0363(6) 0.0430(8) 0.0426(7) -0.0076(6) 0.0101(5) 0.0001(6) Sb2 0.0374(6) 0.0373(7) 0.0444(7) -0.0054(6) 0.0145(5) -0.0022(6) Cr1 0.043(2) 0.046(2) 0.068(2) -0.015(2) 0.0241(15) -0.006(2) Cr2 0.035(2) 0.047(2) 0.067(2) 0.011(2) 0.0165(14) 0.0070(15) Cr3 0.0323(15) 0.044(2) 0.052(2) -0.009(2) 0.0136(13) -0.0009(14) Cr4 0.048(2) 0.054(2) 0.035(2) -0.0079(15) 0.0152(14) -0.0116(15) S 0.048(3) 0.047(3) 0.050(3) -0.008(2) 0.014(2) 0.011(2) O11 0.105(13) 0.094(14) 0.165(18) -0.068(12) 0.028(12) -0.022(10) O12 0.057(8) 0.040(8) 0.100(10) -0.004(8) 0.018(8) 0.000(7) O13 0.054(8) 0.080(11) 0.068(10) -0.009(8) 0.002(7) 0.014(8) O21 0.102(11) 0.082(12) 0.053(9) 0.010(9) 0.010(9) -0.010(9) O22 0.088(11) 0.064(11) 0.106(12) -0.017(9) 0.032(9) 0.016(8) O23 0.050(8) 0.134(13) 0.039(8) -0.020(9) 0.000(7) 0.008(8) O31 0.069(10) 0.075(12) 0.196(17) -0.020(11) 0.058(10) 0.027(8) O32 0.046(8) 0.138(13) 0.074(10) 0.032(9) 0.037(7) -0.004(8) O33 0.047(8) 0.085(11) 0.126(12) 0.035(10) 0.025(8) -0.003(8) O41 0.057(9) 0.139(15) 0.100(11) -0.070(10) 0.018(8) 0.013(9) O42 0.090(10) 0.084(11) 0.055(9) -0.004(8) 0.043(8) -0.026(8) O43 0.125(13) 0.066(10) 0.077(11) 0.006(9) -0.004(9) -0.026(10) C11 0.060(14) 0.042(14) 0.138(23) -0.033(14) 0.026(14) 0.001(11) C12 0.045(11) 0.079(15) 0.047(12) -0.029(11) 0.017(10) -0.005(11) C13 0.047(12) 0.034(12) 0.069(15) -0.007(10) 0.001(11) 0.000(9) C14 0.128(23) 0.127(24) 0.087(19) -0.045(21) 0.069(17) -0.067(24) C15 0.202(36) 0.070(19) 0.216(37) -0.098(23) 0.197(33) -0.101(24) C16 0.085(21) 0.082(22) 0.251(42) 0.049(24) 0.128(25) 0.015(17) C17 0.083(20) 0.142(28) 0.074(18) -0.044(19) 0.047(15) -0.060(19) C18 0.116(20) 0.034(13) 0.114(21) 0.014(16) 0.072(17) -0.001(15) C21 0.076(15) 0.087(19) 0.066(16) -0.037(14) 0.023(14) -0.021(14) C22 0.047(12) 0.036(12) 0.113(18) -0.015(12) 0.028(12) -0.011(10) C23 0.040(11) 0.085(15) 0.023(10) -0.005(10) 0.008(8) 0.027(10) C24 0.112(20) 0.080(18) 0.117(22) 0.060(16) 0.064(18) 0.030(16) C25 0.052(14) 0.052(14) 0.122(22) 0.026(15) 0.029(15) 0.007(11) C26 0.061(16) 0.040(12) 0.102(19) 0.003(14) 0.019(14) -0.004(11) C27 0.038(13) 0.133(24) 0.119(22) 0.049(21) -0.026(13) -0.009(15) C28 0.085(19) 0.037(14) 0.168(29) 0.046(18) 0.053(21) -0.014(12) C31 0.041(11) 0.074(15) 0.109(17) 0.001(13) 0.048(11) 0.027(11) C32 0.044(11) 0.082(15) 0.039(12) 0.003(11) 0.024(9) -0.009(10) C33 0.039(11) 0.055(13) 0.058(13) -0.011(11) 0.011(10) 0.003(10) C34 0.019(11) 0.149(26) 0.129(21) -0.083(20) -0.023(12) 0.031(14) C35 0.089(17) 0.043(14) 0.090(17) 0.027(12) -0.036(14) 0.007(14) C36 0.061(15) 0.112(21) 0.056(16) -0.031(15) 0.003(12) 0.015(16) C37 0.116(21) 0.055(15) 0.042(14) -0.021(12) -0.034(13) 0.032(14) C41 0.023(10) 0.087(16) 0.100(16) -0.054(13) 0.019(11) -0.008(10) C42 0.043(11) 0.048(13) 0.086(16) -0.017(12) 0.029(11) -0.018(9) C43 0.079(14) 0.090(17) 0.022(10) 0.015(12) 0.012(9) -0.016(14) C44 0.084(17) 0.126(23) 0.049(14) 0.019(14) 0.036(13) -0.001(16) C45 0.103(19) 0.103(20) 0.041(14) -0.004(13) 0.005(13) -0.029(17) C46 0.052(13) 0.130(22) 0.085(17) 0.037(16) 0.024(12) -0.038(14) C48 0.067(14) 0.065(15) 0.060(14) 0.037(12) -0.013(11) -0.029(12) _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 Sb1 S 2.466(5) . y Sb1 Cr1 2.837(3) . y Sb1 Cr2 2.849(3) . y Sb2 S 2.449(4) . y Sb2 Cr3 2.842(3) . y Sb2 Cr4 2.849(3) . y Cr1 C11 1.79(2) . y Cr1 C12 1.82(2) . y Cr1 C13 1.84(2) . y Cr1 C18 2.15(2) . ? Cr1 C15 2.15(2) . ? Cr1 C16 2.16(2) . ? Cr1 C14 2.18(2) . ? Cr1 C17 2.18(2) . ? Cr2 C22 1.81(2) . y Cr2 C21 1.83(2) . y Cr2 C23 1.88(2) . y Cr2 C28 2.14(2) . ? Cr2 C25 2.15(2) . ? Cr2 C27 2.17(2) . ? Cr2 C26 2.18(2) . ? Cr2 C24 2.25(2) . ? Cr3 C31 1.80(2) . y Cr3 C33 1.80(2) . y Cr3 C32 1.85(2) . y Cr3 C35 2.12(2) . ? Cr3 C38 2.14(2) . ? Cr3 C36 2.15(2) . ? Cr3 C34 2.18(2) . ? Cr3 C37 2.22(2) . ? Cr4 C43 1.77(2) . y Cr4 C41 1.84(2) . y Cr4 C42 1.86(2) . y Cr4 C48 2.17(2) . ? Cr4 C44 2.17(2) . ? Cr4 C47 2.18(2) . ? Cr4 C45 2.18(2) . ? Cr4 C46 2.22(2) . ? O11 C11 1.16(2) . ? O12 C12 1.17(2) . ? O13 C13 1.15(2) . ? O21 C21 1.14(2) . ? O22 C22 1.13(2) . ? O23 C23 1.10(2) . ? O31 C31 1.12(2) . ? O32 C32 1.13(2) . ? O33 C33 1.15(2) . ? O41 C41 1.13(2) . ? O42 C42 1.13(2) . ? O43 C43 1.20(2) . ? C14 C15 1.34(4) . ? C14 C18 1.38(3) . ? C15 C16 1.32(4) . ? C16 C17 1.34(3) . ? C17 C18 1.37(3) . ? C24 C28 1.36(3) . ? C24 C25 1.37(2) . ? C25 C26 1.34(2) . ? C26 C27 1.44(3) . ? C27 C28 1.34(3) . ? C34 C35 1.37(3) . ? C34 C38 1.38(3) . ? C35 C36 1.34(2) . ? C36 C37 1.34(2) . ? C37 C38 1.37(2) . ? C44 C45 1.35(2) . ? C44 C48 1.46(2) . ? C45 C46 1.36(2) . ? C46 C47 1.40(2) . ? C47 C48 1.34(2) . ? 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 S Sb1 Cr1 106.96(12) . . y S Sb1 Cr2 98.53(12) . . y Cr1 Sb1 Cr2 115.07(9) . . y S Sb2 Cr3 98.82(12) . . y S Sb2 Cr4 107.57(12) . . y Cr3 Sb2 Cr4 114.83(9) . . y C11 Cr1 C12 81.7(8) . . y C11 Cr1 C13 78.4(8) . . y C12 Cr1 C13 111.6(8) . . y C11 Cr1 C18 95.1(10) . . ? C12 Cr1 C18 97.4(9) . . ? C13 Cr1 C18 148.7(10) . . ? C11 Cr1 C15 145.9(10) . . ? C12 Cr1 C15 123.2(13) . . ? C13 Cr1 C15 108.1(12) . . ? C18 Cr1 C15 61.6(8) . . ? C11 Cr1 C16 111.9(13) . . ? C12 Cr1 C16 152.2(10) . . ? C13 Cr1 C16 95.2(9) . . ? C18 Cr1 C16 58.5(9) . . ? C15 Cr1 C16 35.7(10) . . ? C11 Cr1 C14 131.6(11) . . ? C12 Cr1 C14 94.6(10) . . ? C13 Cr1 C14 143.9(11) . . ?