#------------------------------------------------------------------------------
#$Date: 2008-02-24 08:42:19 +0100 (Sun, 24 Feb 2008) $
#$Revision: 156 $
#$URL: svn://www.crystallography.net/cod/cif/2/2100524.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_2100524
loop_
_publ_author_name
'Harriott Nowell'
'Christopher S. Frampton'
'Julie Waite'
'Sarah L. Price'
_publ_section_title
;
Blind crystal structure prediction of a novel second polymorph of
1-hydroxy-7-azabenzotriazole
;
_journal_coeditor_code           BK5029
_journal_date_accepted           2006-04-06
_journal_date_recd_electronic    2006-01-23
_journal_issue                   4
_journal_name_full               'Acta Crystallographica, Section B'
_journal_page_first              642
_journal_page_last               650
_journal_paper_category          FA
_journal_volume                  62
_journal_year                    2006
_chemical_formula_sum            'C5 H4 N4 O'
_chemical_formula_weight         136.12
_chemical_name_common
;
HOAt Form I
;
_chemical_name_systematic
;
1-hydroxy-7-azabenzotriazole
;
_symmetry_cell_setting           Monoclinic
_symmetry_space_group_name_H-M   C2/c
_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                 114.8850(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   22.0427(6)
_cell_length_b                   3.93110(10)
_cell_length_c                   14.2340(4)
_cell_measurement_reflns_used    3604
_cell_measurement_temperature    123.0(10)
_cell_measurement_theta_max      29.10
_cell_measurement_theta_min      2.95
_cell_volume                     1118.89(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL, Bruker SADABS'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123.0(10)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'SMART 1K CCD area detector'
_diffrn_measurement_method       'Narrow frame omega scans'
_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  0.0171
_diffrn_reflns_av_sigmaI/netI    0.0113
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       4
_diffrn_reflns_limit_k_min       -4
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            4460
_diffrn_reflns_theta_full        26.36
_diffrn_reflns_theta_max         26.36
_diffrn_reflns_theta_min         2.04
_exptl_absorpt_coefficient_mu    0.122
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.616
_exptl_crystal_description       Prism
_exptl_crystal_F_000             560
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.282
_refine_diff_density_min         -0.160
_refine_ls_extinction_coef       0.0104(16)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.000
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     108
_refine_ls_number_reflns         1140
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.000
_refine_ls_R_factor_all          0.0326
_refine_ls_R_factor_gt           0.0296
_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/[\s^2^(Fo^2^)+(0.0628P)^2^+0.6435P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0878
_refine_ls_wR_factor_ref         0.0903
_reflns_number_gt                1038
_reflns_number_total             1140
_reflns_threshold_expression     >2sigma(I)
_[local]_cod_data_source_file    bk5029.cif
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_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_
_atom_site_type_symbol
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_calc_flag
_atom_site_occupancy
O O1 0.46605(4) 0.1279(2) 0.61816(7) 0.0235(3) Uani d 1
H H1 0.5071(9) 0.007(5) 0.6564(13) 0.047(5) Uiso d 1
N N1 0.41612(5) -0.1002(2) 0.60172(7) 0.0193(3) Uani d 1
N N2 0.37483(5) -0.1896(3) 0.50479(7) 0.0225(3) Uani d 1
N N3 0.32647(5) -0.3768(3) 0.50801(8) 0.0226(3) Uani d 1
N N4 0.42240(5) -0.1969(2) 0.77470(7) 0.0193(3) Uani d 1
C C1 0.39497(5) -0.2276(3) 0.67120(8) 0.0180(3) Uani d 1
C C2 0.33697(5) -0.4055(3) 0.61006(8) 0.0192(3) Uani d 1
C C3 0.30089(6) -0.5644(3) 0.65879(9) 0.0211(3) Uani d 1
H H3 0.2588(7) -0.687(4) 0.6195(11) 0.027(4) Uiso d 1
C C4 0.32743(6) -0.5308(3) 0.76496(9) 0.0215(3) Uani d 1
H H4 0.3064(7) -0.639(4) 0.8035(11) 0.028(4) Uiso d 1
C C5 0.38750(6) -0.3508(3) 0.81958(9) 0.0204(3) Uani d 1
H H5 0.4066(7) -0.336(3) 0.8921(11) 0.019(3) Uiso d 1
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
O1 0.0198(4) 0.0227(5) 0.0270(5) 0.0004(3) 0.0090(4) 0.0059(3)
N1 0.0193(5) 0.0204(5) 0.0179(5) 0.0024(4) 0.0075(4) 0.0021(3)
N2 0.0228(5) 0.0255(5) 0.0167(5) 0.0051(4) 0.0060(4) 0.0019(4)
N3 0.0219(5) 0.0255(6) 0.0181(5) 0.0031(4) 0.0061(4) -0.0003(4)
N4 0.0190(5) 0.0201(5) 0.0174(5) 0.0022(4) 0.0064(4) -0.0003(4)
C1 0.0176(5) 0.0170(5) 0.0195(6) 0.0039(4) 0.0080(4) 0.0009(4)
C2 0.0179(5) 0.0193(6) 0.0174(6) 0.0046(4) 0.0045(4) -0.0002(4)
C3 0.0175(5) 0.0197(6) 0.0236(6) 0.0025(4) 0.0063(4) -0.0001(4)
C4 0.0211(6) 0.0220(6) 0.0231(6) 0.0027(4) 0.0108(5) 0.0025(4)
C5 0.0220(6) 0.0221(6) 0.0169(6) 0.0034(4) 0.0081(4) 0.0002(4)
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
_geom_bond_publ_flag
O1 N1 1.3616(13) yes
O1 H1 0.962(18) yes
N1 N2 1.3412(13) yes
N1 C1 1.3543(14) yes
N2 N3 1.3119(15) yes
N3 C2 1.3760(15) yes
N4 C5 1.3338(15) yes
N4 C1 1.3419(14) yes
C1 C2 1.3946(15) yes
C2 C3 1.4029(16) yes
C3 C4 1.3782(16) yes
C3 H3 0.984(15) yes
C4 C5 1.4115(16) yes
C4 H4 0.954(15) yes
C5 H5 0.938(14) yes
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
_geom_angle_publ_flag
N1 O1 H1 105.8(10) yes
N2 N1 C1 111.18(10) yes
N2 N1 O1 119.92(9) yes
C1 N1 O1 128.30(10) yes
N3 N2 N1 108.70(9) yes
N2 N3 C2 107.74(9) yes
C5 N4 C1 113.63(9) yes
N4 C1 N1 129.35(10) yes
N4 C1 C2 126.97(10) yes
N1 C1 C2 103.68(10) yes
N3 C2 C1 108.69(10) yes
N3 C2 C3 132.84(10) yes
C1 C2 C3 118.44(10) yes
C4 C3 C2 115.60(10) yes
C4 C3 H3 122.2(8) yes
C2 C3 H3 122.2(9) yes
C3 C4 C5 121.26(10) yes
C3 C4 H4 120.2(9) yes
C5 C4 H4 118.5(8) yes
N4 C5 C4 124.05(10) yes
N4 C5 H5 114.6(8) yes
C4 C5 H5 121.3(8) yes
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_publ_flag
C1 N1 N2 N3 -0.38(13) yes
O1 N1 N2 N3 -172.29(9) yes
N1 N2 N3 C2 0.46(12) yes
C5 N4 C1 N1 178.81(11) yes
C5 N4 C1 C2 -1.78(16) yes
N2 N1 C1 N4 179.65(11) yes
O1 N1 C1 N4 -9.29(19) yes
N2 N1 C1 C2 0.14(12) yes
O1 N1 C1 C2 171.20(10) yes
N2 N3 C2 C1 -0.37(12) yes
N2 N3 C2 C3 177.85(11) yes
N4 C1 C2 N3 -179.39(10) yes
N1 C1 C2 N3 0.14(12) yes
N4 C1 C2 C3 2.09(17) yes
N1 C1 C2 C3 -178.38(9) yes
N3 C2 C3 C4 -178.73(11) yes
C1 C2 C3 C4 -0.64(15) yes
C2 C3 C4 C5 -0.78(17) yes
C1 N4 C5 C4 0.16(16) yes
C3 C4 C5 N4 1.10(18) yes
loop_
_geom_hbond_atom_site_label_D
_geom_hbond_atom_site_label_H
_geom_hbond_atom_site_label_A
_geom_hbond_site_symmetry_A
_geom_hbond_distance_DH
_geom_hbond_distance_HA
_geom_hbond_distance_DA
_geom_hbond_angle_DHA
O1 H1 N4 2_656 0.962(18) 1.655(18) 2.6167(12) 178.4(16)