#------------------------------------------------------------------------------
#$Date: 2016-03-26 03:44:55 +0200 (Sat, 26 Mar 2016) $
#$Revision: 180194 $
#$URL: svn://www.crystallography.net/cod/cif/7/10/90/7109085.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_7109085
loop_
_publ_author_name
'Handan Akpinar'
'John A. Schlueter'
'Paul M. Lahti'
_publ_section_title
;
 2-(9,10-Anthraquinon-2-yl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-3-oxide-1-oxyl:
 polymorphism in a conjugated anthraquinone-substituted nitronylnitroxide
;
_journal_name_full               Chem.Commun.
_journal_page_first              3345
_journal_paper_doi               10.1039/c3cc41075g
_journal_volume                  49
_journal_year                    2013
_chemical_formula_moiety         'C21 H19 N2 O4'
_chemical_formula_sum            'C21 H19 N2 O4'
_chemical_formula_weight         363.38
_chemical_melting_point          481
_chemical_name_common
;
2-(9,10-Anthraquinon-2-yl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-
imidazole-3-oxide-
;
_chemical_name_systematic
;
2-(9,10-Anthraquinon-2-yl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-3-oxide-1-oxyl
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      61
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           'manual editing of SHELXL-97 cif file'
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   7.3230(5)
_cell_length_b                   21.4026(17)
_cell_length_c                   22.3514(17)
_cell_measurement_reflns_used    2507
_cell_measurement_temperature    300(2)
_cell_measurement_theta_max      20.032
_cell_measurement_theta_min      2.635
_cell_volume                     3503.2(5)
_computing_cell_refinement       'APEX II v.2.2 (Bruker, 2007)'
_computing_data_collection       'APEX II v.2.2 (Bruker, 2007)'
_computing_data_reduction        'APEX II v.2.2 (Bruker, 2007)'
_computing_molecular_graphics    'Diamond 3.1a (Crystal Impact, 2005)'
_computing_publication_material  'SHELXTL (Bruker, 2006)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      300(2)
_diffrn_detector_area_resol_mean 83.33
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  '3-circle goniometer'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0667
_diffrn_reflns_av_sigmaI/netI    0.0303
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            24088
_diffrn_reflns_theta_full        23.32
_diffrn_reflns_theta_max         23.32
_diffrn_reflns_theta_min         1.82
_diffrn_source_type              'Bruker APEX II'
_exptl_absorpt_coefficient_mu    0.096
_exptl_absorpt_correction_T_max  0.7449
_exptl_absorpt_correction_T_min  0.6224
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, R. Blessing; 1995'
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.378
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1528
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.173
_refine_diff_density_min         -0.177
_refine_diff_density_rms         0.039
_refine_ls_extinction_coef       0.0017(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc²λ³/sin(2θ)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     245
_refine_ls_number_reflns         2534
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0690
_refine_ls_R_factor_gt           0.0436
_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)+(0.0673P)²+1.2058P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1126
_refine_ls_wR_factor_ref         0.1309
_reflns_number_gt                1812
_reflns_number_total             2534
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3cc41075g.txt
_cod_data_source_block           BAntQNN300K
_cod_database_code               7109085
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x+1/2, -y, z+1/2'
'-x, y+1/2, -z+1/2'
'x+1/2, -y+1/2, -z'
'-x, -y, -z'
'x-1/2, y, -z-1/2'
'x, -y-1/2, z-1/2'
'-x-1/2, y-1/2, z'
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
C1 C 0.3408(3) 0.13577(11) 0.23054(10) 0.0400(6) Uani 1 1 d .
O1 O 0.2182(3) 0.26406(9) 0.25256(9) 0.0720(7) Uani 1 1 d .
N1 N 0.2940(3) 0.24746(10) 0.20338(9) 0.0465(6) Uani 1 1 d .
O2 O 0.4884(3) 0.14146(8) 0.10778(8) 0.0536(5) Uani 1 1 d .
N2 N 0.4210(3) 0.18901(9) 0.13458(8) 0.0399(5) Uani 1 1 d .
C2 C 0.3628(3) 0.14309(11) 0.29197(11) 0.0406(6) Uani 1 1 d .
H2 H 0.3972 0.1817 0.3074 0.049 Uiso 1 1 calc R
C3 C 0.3334(3) 0.09277(11) 0.33056(10) 0.0389(6) Uani 1 1 d .
O4 O 0.4400(3) 0.14800(8) 0.41544(8) 0.0592(6) Uani 1 1 d .
C4 C 0.3633(4) 0.10146(12) 0.39621(11) 0.0439(6) Uani 1 1 d .
C5 C 0.3043(3) 0.04992(11) 0.43651(11) 0.0447(6) Uani 1 1 d .
C6 C 0.3136(4) 0.05846(13) 0.49827(12) 0.0571(8) Uani 1 1 d .
H6 H 0.3543 0.0963 0.5137 0.069 Uiso 1 1 calc R
C7 C 0.2626(4) 0.01097(15) 0.53656(14) 0.0675(9) Uani 1 1 d .
H7 H 0.2677 0.0171 0.5777 0.081 Uiso 1 1 calc R
C8 C 0.2040(4) -0.04573(15) 0.51395(14) 0.0664(9) Uani 1 1 d .
H8 H 0.1711 -0.0778 0.5399 0.080 Uiso 1 1 calc R
C9 C 0.1943(4) -0.05471(13) 0.45293(14) 0.0587(8) Uani 1 1 d .
H9 H 0.1549 -0.0929 0.4379 0.070 Uiso 1 1 calc R
C10 C 0.2434(3) -0.00680(12) 0.41357(12) 0.0480(7) Uani 1 1 d .
O11 O 0.1772(4) -0.06702(10) 0.32767(10) 0.0913(8) Uani 1 1 d .
C11 C 0.2299(4) -0.01730(12) 0.34794(13) 0.0528(7) Uani 1 1 d .
C12 C 0.2781(3) 0.03534(11) 0.30750(11) 0.0434(6) Uani 1 1 d .
C13 C 0.2629(4) 0.02749(12) 0.24593(12) 0.0506(7) Uani 1 1 d .
H13 H 0.2306 -0.0113 0.2304 0.061 Uiso 1 1 calc R
C14 C 0.2955(4) 0.07687(11) 0.20762(11) 0.0486(7) Uani 1 1 d .
H14 H 0.2873 0.0710 0.1665 0.058 Uiso 1 1 calc R
C15 C 0.3550(3) 0.18974(11) 0.19091(10) 0.0387(6) Uani 1 1 d .
C16 C 0.3030(4) 0.29144(11) 0.15102(11) 0.0448(6) Uani 1 1 d .
C17 C 0.4219(3) 0.25278(11) 0.10597(10) 0.0421(6) Uani 1 1 d .
C18 C 0.3859(5) 0.35260(13) 0.17235(13) 0.0668(9) Uani 1 1 d .
H18A H 0.3035 0.3727 0.1997 0.100 Uiso 1 1 calc R
H18B H 0.4071 0.3794 0.1386 0.100 Uiso 1 1 calc R
H18C H 0.4996 0.3443 0.1922 0.100 Uiso 1 1 calc R
C19 C 0.1056(4) 0.30122(15) 0.13104(14) 0.0683(9) Uani 1 1 d .
H19A H 0.0414 0.3250 0.1608 0.102 Uiso 1 1 calc R
H19B H 0.0472 0.2614 0.1261 0.102 Uiso 1 1 calc R
H19C H 0.1040 0.3234 0.0937 0.102 Uiso 1 1 calc R
C20 C 0.6206(4) 0.27304(13) 0.10246(12) 0.0569(8) Uani 1 1 d .
H20A H 0.6840 0.2474 0.0740 0.085 Uiso 1 1 calc R
H20B H 0.6765 0.2686 0.1411 0.085 Uiso 1 1 calc R
H20C H 0.6269 0.3159 0.0901 0.085 Uiso 1 1 calc R
C21 C 0.3425(4) 0.24576(14) 0.04322(11) 0.0611(8) Uani 1 1 d .
H21A H 0.4245 0.2216 0.0190 0.092 Uiso 1 1 calc R
H21B H 0.3263 0.2863 0.0257 0.092 Uiso 1 1 calc R
H21C H 0.2266 0.2249 0.0455 0.092 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'
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'
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
C2 C1 C14 119.3(2)
C2 C1 C15 120.1(2)
C14 C1 C15 120.5(2)
O1 N1 C15 125.3(2)
O1 N1 C16 120.85(19)
C15 N1 C16 113.58(19)
O2 N2 C15 125.8(2)
O2 N2 C17 121.32(18)
C15 N2 C17 112.77(19)
C1 C2 C3 120.3(2)
C1 C2 H2 119.8
C3 C2 H2 119.8
C12 C3 C2 119.8(2)
C12 C3 C4 121.0(2)
C2 C3 C4 119.2(2)
O4 C4 C5 121.7(2)
O4 C4 C3 120.9(2)
C5 C4 C3 117.3(2)
C10 C5 C6 119.7(2)
C10 C5 C4 121.1(2)
C6 C5 C4 119.2(2)
C7 C6 C5 120.3(3)
C7 C6 H6 119.9
C5 C6 H6 119.9
C6 C7 C8 120.2(3)
C6 C7 H7 119.9
C8 C7 H7 119.9
C9 C8 C7 120.0(3)
C9 C8 H8 120.0
C7 C8 H8 120.0
C8 C9 C10 120.5(3)
C8 C9 H9 119.8
C10 C9 H9 119.8
C5 C10 C9 119.4(3)
C5 C10 C11 121.1(2)
C9 C10 C11 119.5(2)
O11 C11 C12 120.7(3)
O11 C11 C10 121.3(2)
C12 C11 C10 118.0(2)
C13 C12 C3 119.7(2)
C13 C12 C11 119.4(2)
C3 C12 C11 120.8(2)
C14 C13 C12 120.5(2)
C14 C13 H13 119.8
C12 C13 H13 119.8
C13 C14 C1 120.2(2)
C13 C14 H14 119.9
C1 C14 H14 119.9
N1 C15 N2 108.9(2)
N1 C15 C1 125.3(2)
N2 C15 C1 125.7(2)
N1 C16 C18 108.2(2)
N1 C16 C19 105.8(2)
C18 C16 C19 110.6(2)
N1 C16 C17 101.17(18)
C18 C16 C17 115.7(2)
C19 C16 C17 114.2(2)
N2 C17 C20 106.5(2)
N2 C17 C21 107.4(2)
C20 C17 C21 110.2(2)
N2 C17 C16 101.72(18)
C20 C17 C16 114.5(2)
C21 C17 C16 115.5(2)
C16 C18 H18A 109.5
C16 C18 H18B 109.5
H18A C18 H18B 109.5
C16 C18 H18C 109.5
H18A C18 H18C 109.5
H18B C18 H18C 109.5
C16 C19 H19A 109.5
C16 C19 H19B 109.5
H19A C19 H19B 109.5
C16 C19 H19C 109.5
H19A C19 H19C 109.5
H19B C19 H19C 109.5
C17 C20 H20A 109.5
C17 C20 H20B 109.5
H20A C20 H20B 109.5
C17 C20 H20C 109.5
H20A C20 H20C 109.5
H20B C20 H20C 109.5
C17 C21 H21A 109.5
C17 C21 H21B 109.5
H21A C21 H21B 109.5
C17 C21 H21C 109.5
H21A C21 H21C 109.5
H21B C21 H21C 109.5
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
C1 C2 1.391(3)
C1 C14 1.401(3)
C1 C15 1.459(3)
O1 N1 1.282(3)
N1 C15 1.343(3)
N1 C16 1.503(3)
O2 N2 1.280(2)
N2 C15 1.349(3)
N2 C17 1.507(3)
C2 C3 1.396(3)
C2 H2 0.9300
C3 C12 1.393(3)
C3 C4 1.495(3)
O4 C4 1.222(3)
C4 C5 1.488(3)
C5 C10 1.391(4)
C5 C6 1.394(4)
C6 C7 1.380(4)
C6 H6 0.9300
C7 C8 1.383(4)
C7 H7 0.9300
C8 C9 1.379(4)
C8 H8 0.9300
C9 C10 1.398(3)
C9 H9 0.9300
C10 C11 1.487(4)
O11 C11 1.219(3)
C11 C12 1.487(3)
C12 C13 1.391(4)
C13 C14 1.381(3)
C13 H13 0.9300
C14 H14 0.9300
C16 C18 1.520(4)
C16 C19 1.527(4)
C16 C17 1.568(3)
C17 C20 1.521(4)
C17 C21 1.526(3)
C18 H18A 0.9600
C18 H18B 0.9600
C18 H18C 0.9600
C19 H19A 0.9600
C19 H19B 0.9600
C19 H19C 0.9600
C20 H20A 0.9600
C20 H20B 0.9600
C20 H20C 0.9600
C21 H21A 0.9600
C21 H21B 0.9600
C21 H21C 0.9600
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
C14 C1 C2 C3 -2.3(4)
C15 C1 C2 C3 174.3(2)
C1 C2 C3 C12 -1.4(4)
C1 C2 C3 C4 178.2(2)
C12 C3 C4 O4 167.8(2)
C2 C3 C4 O4 -11.8(4)
C12 C3 C4 C5 -9.3(3)
C2 C3 C4 C5 171.1(2)
O4 C4 C5 C10 -169.9(2)
C3 C4 C5 C10 7.2(4)
O4 C4 C5 C6 9.0(4)
C3 C4 C5 C6 -174.0(2)
C10 C5 C6 C7 0.0(4)
C4 C5 C6 C7 -178.9(3)
C5 C6 C7 C8 0.8(5)
C6 C7 C8 C9 -0.8(5)
C7 C8 C9 C10 0.0(4)
C6 C5 C10 C9 -0.8(4)
C4 C5 C10 C9 178.1(2)
C6 C5 C10 C11 179.3(2)
C4 C5 C10 C11 -1.8(4)
C8 C9 C10 C5 0.8(4)
C8 C9 C10 C11 -179.3(3)
C5 C10 C11 O11 179.7(3)
C9 C10 C11 O11 -0.2(4)
C5 C10 C11 C12 -1.9(4)
C9 C10 C11 C12 178.3(2)
C2 C3 C12 C13 3.8(4)
C4 C3 C12 C13 -175.8(2)
C2 C3 C12 C11 -174.5(2)
C4 C3 C12 C11 5.9(4)
O11 C11 C12 C13 -0.1(4)
C10 C11 C12 C13 -178.5(2)
O11 C11 C12 C3 178.2(3)
C10 C11 C12 C3 -0.3(4)
C3 C12 C13 C14 -2.5(4)
C11 C12 C13 C14 175.8(2)
C12 C13 C14 C1 -1.2(4)
C2 C1 C14 C13 3.7(4)
C15 C1 C14 C13 -173.0(2)
O1 N1 C15 N2 178.1(2)
C16 N1 C15 N2 4.5(3)
O1 N1 C15 C1 1.9(4)
C16 N1 C15 C1 -171.7(2)
O2 N2 C15 N1 -179.2(2)
C17 N2 C15 N1 5.2(3)
O2 N2 C15 C1 -3.0(4)
C17 N2 C15 C1 -178.6(2)
C2 C1 C15 N1 -37.5(4)
C14 C1 C15 N1 139.1(3)
C2 C1 C15 N2 146.9(2)
C14 C1 C15 N2 -36.5(4)
O1 N1 C16 C18 52.6(3)
C15 N1 C16 C18 -133.5(2)
O1 N1 C16 C19 -66.0(3)
C15 N1 C16 C19 107.9(2)
O1 N1 C16 C17 174.7(2)
C15 N1 C16 C17 -11.4(3)
O2 N2 C17 C20 -67.5(3)
C15 N2 C17 C20 108.3(2)
O2 N2 C17 C21 50.6(3)
C15 N2 C17 C21 -133.6(2)
O2 N2 C17 C16 172.4(2)
C15 N2 C17 C16 -11.9(2)
N1 C16 C17 N2 12.8(2)
C18 C16 C17 N2 129.4(2)
C19 C16 C17 N2 -100.4(2)
N1 C16 C17 C20 -101.6(2)
C18 C16 C17 C20 15.0(3)
C19 C16 C17 C20 145.2(2)
N1 C16 C17 C21 128.7(2)
C18 C16 C17 C21 -114.6(3)
C19 C16 C17 C21 15.6(3)
