 
data_06skc0005p-1
 
_audit_creation_method            SHELXL-97
_chemical_name_systematic
;
Suberic acid & 2-methylimidazole
;
_chemical_name_common             ?
_chemical_melting_point           ?
_chemical_formula_moiety          ?
_chemical_formula_sum
 'C12 H20 N2 O4'
_chemical_formula_weight          256.30
 
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'
 
_symmetry_cell_setting            Triclinic
_symmetry_space_group_name_H-M    P-1
 
loop_
 _symmetry_equiv_pos_as_xyz
 'x, y, z'
 '-x, -y, -z'
 
_cell_length_a                    7.3683(4)
_cell_length_b                    9.0497(3)
_cell_length_c                    10.7486(5)
_cell_angle_alpha                 76.546(3)
_cell_angle_beta                  80.396(2)
_cell_angle_gamma                 76.933(3)
_cell_volume                      674.05(5)
_cell_formula_units_Z             2
_cell_measurement_temperature     120(2)
_cell_measurement_reflns_used     2981
_cell_measurement_theta_min       0.41
_cell_measurement_theta_max       27.48
 
_exptl_crystal_description        fragment
_exptl_crystal_colour             colourless
_exptl_crystal_size_max           0.09
_exptl_crystal_size_mid           0.07
_exptl_crystal_size_min           0.02
_exptl_crystal_density_meas       ?
_exptl_crystal_density_diffrn     1.263
_exptl_crystal_density_method     'not measured'
_exptl_crystal_F_000              276
_exptl_absorpt_coefficient_mu     0.095
_exptl_absorpt_correction_type    multi-scan
_exptl_absorpt_correction_T_min   0.9915
_exptl_absorpt_correction_T_max   0.9981
_exptl_absorpt_process_details       'SADABS V2.10 (Sheldrick, G.M., 2003)' 
 
_exptl_special_details
;
 ?
;
 
_diffrn_ambient_temperature           120(2)
_diffrn_radiation_wavelength           0.71073
_diffrn_radiation_type                      MoK\a
_diffrn_radiation_source                  'Bruker-Nonius FR591 rotating anode'
_diffrn_radiation_monochromator    '10cm confocal mirrors'
_diffrn_measurement_device_type  'Bruker-Nonius 95mm CCD camera on κ-goniostat'
_diffrn_measurement_method          'φ & ω scans'
_diffrn_detector_area_resol_mean   9.091
_diffrn_standards_number          ?
_diffrn_standards_interval_count  ?
_diffrn_standards_interval_time   ?
_diffrn_standards_decay_%         ?
_diffrn_reflns_number             14400
_diffrn_reflns_av_R_equivalents   0.0754
_diffrn_reflns_av_sigmaI/netI     0.0659
_diffrn_reflns_limit_h_min        -9
_diffrn_reflns_limit_h_max        9
_diffrn_reflns_limit_k_min        -11
_diffrn_reflns_limit_k_max        11
_diffrn_reflns_limit_l_min        -13
_diffrn_reflns_limit_l_max        13
_diffrn_reflns_theta_min          3.27
_diffrn_reflns_theta_max          27.48
_reflns_number_total              3090
_reflns_number_gt                 1951
_reflns_threshold_expression      >2sigma(I)
 
_computing_data_collection        
'COLLECT (Hooft, R.W.W., 1998)'
_computing_cell_refinement        
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)'
#Although determined using DirAx, the cell is refined in the HKL
#package during data reduction
_computing_data_reduction         
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)'  
_computing_structure_solution     ?
_computing_structure_refinement   'SHELXL-97 (Sheldrick, 1997)'
_computing_molecular_graphics     ?
_computing_publication_material   ?
 
_refine_special_details
;
 Refinement of F² against ALL reflections.  The weighted R-factor wR and
 goodness of fit S are based on F², conventional R-factors R are based
 on F, with F set to zero for negative F². The threshold expression of
 F² > 2sigma(F²) is used only for calculating R-factors(gt) etc. and is
 not relevant to the choice of reflections for refinement.  R-factors based
 on F² 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/[σ²(Fo²)+(0.0343P)²+0.2653P] where P=(Fo²+2Fc²)/3'
_atom_sites_solution_primary      direct
_atom_sites_solution_secondary    difmap
_atom_sites_solution_hydrogens    geom
_refine_ls_hydrogen_treatment     mixed
_refine_ls_extinction_method      SHELXL
_refine_ls_extinction_coef        0.055(7)
_refine_ls_extinction_expression
 'Fc^*^=kFc[1+0.001xFc²λ³/sin(2θ)]^-1/4^'
_refine_ls_number_reflns          3090
_refine_ls_number_parameters      203
_refine_ls_number_restraints      0
_refine_ls_R_factor_all           0.1074
_refine_ls_R_factor_gt            0.0574
_refine_ls_wR_factor_ref          0.1281
_refine_ls_wR_factor_gt           0.1098
_refine_ls_goodness_of_fit_ref    1.035
_refine_ls_restrained_S_all       1.035
_refine_ls_shift/su_max           0.043
_refine_ls_shift/su_mean          0.005
 
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
C8 C 0.426(3) 0.828(3) 0.682(3) 0.059(6) Uani 0.41(6) 1 d P A 1
O8A O 0.344(5) 0.735(3) 0.785(3) 0.047(4) Uani 0.41(6) 1 d P A 1
H8 H 0.3120 0.7813 0.8467 0.071 Uiso 0.41(6) 1 calc PR A 1
O8B O 0.391(6) 0.9631(14) 0.6903(12) 0.059(5) Uani 0.41(6) 1 d P A 1
C9 C 0.4268(17) 0.8185(14) 0.7011(15) 0.029(3) Uani 0.59(6) 1 d P A 2
O9A O 0.371(4) 0.7290(19) 0.803(2) 0.053(4) Uani 0.59(6) 1 d P A 2
H9 H 0.3356 0.7787 0.8629 0.080 Uiso 0.59(6) 1 calc PR A 2
O9B O 0.473(4) 0.940(2) 0.7005(16) 0.069(3) Uani 0.59(6) 1 d P A 2
C1 C 0.1789(3) 0.7601(2) 0.09026(18) 0.0361(5) Uani 1 1 d . . .
C2 C 0.1123(3) 0.8189(2) 0.21369(18) 0.0382(5) Uani 1 1 d . . .
H2A H -0.0028 0.8993 0.2013 0.046 Uiso 1 1 calc R . .
H2B H 0.2094 0.8689 0.2309 0.046 Uiso 1 1 calc R . .
C3 C 0.0705(3) 0.6955(2) 0.33110(18) 0.0422(5) Uani 1 1 d . . .
H3B H 0.1829 0.6117 0.3407 0.051 Uiso 1 1 calc R . .
H3A H -0.0326 0.6501 0.3166 0.051 Uiso 1 1 calc R . .
C4 C 0.0151(3) 0.7559(2) 0.45605(19) 0.0470(5) Uani 1 1 d . . .
H4A H -0.0235 0.6717 0.5254 0.056 Uiso 1 1 calc R . .
H4B H -0.0956 0.8413 0.4452 0.056 Uiso 1 1 calc R . .
C5 C 0.1680(3) 0.8149(2) 0.49948(18) 0.0418(5) Uani 1 1 d . . .
H5A H 0.2099 0.8968 0.4293 0.050 Uiso 1 1 calc R . .
H5B H 0.1136 0.8625 0.5749 0.050 Uiso 1 1 calc R . .
C6 C 0.3373(3) 0.6906(2) 0.5352(2) 0.0449(5) Uani 1 1 d . A .
H6A H 0.3915 0.6425 0.4599 0.054 Uiso 1 1 calc R . .
H6B H 0.2956 0.6090 0.6058 0.054 Uiso 1 1 calc R . .
C7 C 0.4897(3) 0.7502(2) 0.5776(2) 0.0465(5) Uani 1 1 d . . .
H7B H 0.5923 0.6617 0.6027 0.056 Uiso 1 1 calc R A 1
H7A H 0.5423 0.8223 0.5034 0.056 Uiso 1 1 calc R A 1
O1A O 0.1811(2) 0.62346(15) 0.08931(14) 0.0562(5) Uani 1 1 d . . .
O1B O 0.2296(2) 0.85766(15) -0.00895(12) 0.0464(4) Uani 1 1 d . . .
C22 C 0.2291(3) 1.2629(2) 0.03459(19) 0.0396(5) Uani 1 1 d . . .
C24 C 0.3745(3) 1.3620(2) -0.1512(2) 0.0470(5) Uani 1 1 d . . .
H24 H 0.4288 1.4332 -0.2185 0.056 Uiso 1 1 calc R . .
C25 C 0.3677(3) 1.2160(2) -0.1534(2) 0.0458(5) Uani 1 1 d . . .
H25 H 0.4165 1.1640 -0.2227 0.055 Uiso 1 1 calc R . .
C26 C 0.1276(4) 1.2484(3) 0.1656(2) 0.0605(7) Uani 1 1 d . . .
H26A H 0.1029 1.3484 0.1921 0.091 Uiso 1 1 calc R . .
H26B H 0.2039 1.1701 0.2254 0.091 Uiso 1 1 calc R . .
H26C H 0.0083 1.2172 0.1665 0.091 Uiso 1 1 calc R . .
N21 N 0.2777(2) 1.15581(19) -0.03736(16) 0.0421(4) Uani 1 1 d . . .
N23 N 0.2884(2) 1.38890(18) -0.03384(16) 0.0411(4) Uani 1 1 d . . .
H21 H 0.257(3) 1.056(3) -0.015(2) 0.056(6) Uiso 1 1 d . . .
H23 H 0.265(3) 1.479(3) -0.005(2) 0.067(7) Uiso 1 1 d . . .
 
 
_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
C8 O8B 1.21(2) . ?
C8 O8A 1.36(4) . ?
C8 C7 1.42(2) . ?
O8A H8 0.8400 . ?
C9 O9B 1.220(15) . ?
C9 O9A 1.27(3) . ?
C9 C7 1.551(11) . ?
O9A H9 0.8400 . ?
C1 O1A 1.235(2) . ?
C1 O1B 1.278(2) . ?
C1 C2 1.509(3) . ?
C2 C3 1.518(3) . ?
C2 H2A 0.9900 . ?
C2 H2B 0.9900 . ?
C3 C4 1.525(3) . ?
C3 H3B 0.9900 . ?
C3 H3A 0.9900 . ?
C4 C5 1.529(3) . ?
C4 H4A 0.9900 . ?
C4 H4B 0.9900 . ?
C5 C6 1.514(3) . ?
C5 H5A 0.9900 . ?
C5 H5B 0.9900 . ?
C6 C7 1.523(3) . ?
C6 H6A 0.9900 . ?
C6 H6B 0.9900 . ?
C7 H7B 0.9900 . ?
C7 H7A 0.9900 . ?
C22 N23 1.327(2) . ?
C22 N21 1.329(2) . ?
C22 C26 1.472(3) . ?
C24 C25 1.340(3) . ?
C24 N23 1.363(3) . ?
C24 H24 0.9500 . ?
C25 N21 1.365(3) . ?
C25 H25 0.9500 . ?
C26 H26A 0.9800 . ?
C26 H26B 0.9800 . ?
C26 H26C 0.9800 . ?
N21 H21 0.92(2) . ?
N23 H23 0.91(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
O8B C8 O8A 113(3) . . ?
O8B C8 C7 134(3) . . ?
O8A C8 C7 110.8(19) . . ?
O9B C9 O9A 123.4(14) . . ?
O9B C9 C7 117.0(12) . . ?
O9A C9 C7 117.4(11) . . ?
C9 O9A H9 109.5 . . ?
O1A C1 O1B 123.65(18) . . ?
O1A C1 C2 119.52(17) . . ?
O1B C1 C2 116.83(15) . . ?
C1 C2 C3 114.74(15) . . ?
C1 C2 H2A 108.6 . . ?
C3 C2 H2A 108.6 . . ?
C1 C2 H2B 108.6 . . ?
C3 C2 H2B 108.6 . . ?
H2A C2 H2B 107.6 . . ?
C2 C3 C4 113.73(16) . . ?
C2 C3 H3B 108.8 . . ?
C4 C3 H3B 108.8 . . ?
C2 C3 H3A 108.8 . . ?
C4 C3 H3A 108.8 . . ?
H3B C3 H3A 107.7 . . ?
C3 C4 C5 115.27(17) . . ?
C3 C4 H4A 108.5 . . ?
C5 C4 H4A 108.5 . . ?
C3 C4 H4B 108.5 . . ?
C5 C4 H4B 108.5 . . ?
H4A C4 H4B 107.5 . . ?
C6 C5 C4 114.03(16) . . ?
C6 C5 H5A 108.7 . . ?
C4 C5 H5A 108.7 . . ?
C6 C5 H5B 108.7 . . ?
C4 C5 H5B 108.7 . . ?
H5A C5 H5B 107.6 . . ?
C5 C6 C7 113.79(16) . . ?
C5 C6 H6A 108.8 . . ?
C7 C6 H6A 108.8 . . ?
C5 C6 H6B 108.8 . . ?
C7 C6 H6B 108.8 . . ?
H6A C6 H6B 107.7 . . ?
C8 C7 C6 114.0(10) . . ?
C8 C7 C9 5.9(16) . . ?
C6 C7 C9 114.1(5) . . ?
C8 C7 H7B 108.8 . . ?
C6 C7 H7B 108.8 . . ?
C9 C7 H7B 103.6 . . ?
C8 C7 H7A 108.7 . . ?
C6 C7 H7A 108.8 . . ?
C9 C7 H7A 113.6 . . ?
H7B C7 H7A 107.6 . . ?
N23 C22 N21 107.26(18) . . ?
N23 C22 C26 125.26(18) . . ?
N21 C22 C26 127.48(18) . . ?
C25 C24 N23 106.90(19) . . ?
C25 C24 H24 126.5 . . ?
N23 C24 H24 126.5 . . ?
C24 C25 N21 107.12(19) . . ?
C24 C25 H25 126.4 . . ?
N21 C25 H25 126.4 . . ?
C22 C26 H26A 109.5 . . ?
C22 C26 H26B 109.5 . . ?
H26A C26 H26B 109.5 . . ?
C22 C26 H26C 109.5 . . ?
H26A C26 H26C 109.5 . . ?
H26B C26 H26C 109.5 . . ?
C22 N21 C25 109.20(16) . . ?
C22 N21 H21 127.1(14) . . ?
C25 N21 H21 123.7(14) . . ?
C22 N23 C24 109.51(16) . . ?
C22 N23 H23 122.4(15) . . ?
C24 N23 H23 127.9(15) . . ?
 
loop_
 _geom_hbond_atom_site_label_D
 _geom_hbond_atom_site_label_H
 _geom_hbond_atom_site_label_A
 _geom_hbond_distance_DH
 _geom_hbond_distance_HA
 _geom_hbond_distance_DA
 _geom_hbond_angle_DHA
 _geom_hbond_site_symmetry_A
N21 H21 O1B  0.92(2) 1.84(2) 2.741(2) 167(2) .
O9A H9 O1B  0.84 1.69 2.52(2) 168.6 1_556
O8A H8 O1B  0.84 1.80 2.64(3) 172.1 1_556
N23 H23 O1A  0.91(2) 1.78(3) 2.661(2) 163(2) 1_565
 
_diffrn_measured_fraction_theta_max    0.996
_diffrn_reflns_theta_full              27.48
_diffrn_measured_fraction_theta_full   0.996
_refine_diff_density_max    0.169
_refine_diff_density_min   -0.196
_refine_diff_density_rms    0.038
