#------------------------------------------------------------------------------
#$Date: 2011-09-28 15:24:46 +0100 (Wed, 28 Sep 2011) $
#$Revision: 26848 $
#$URL: svn://www.crystallography.net/cod/cif/2/10/13/2101337.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided by IUCr Journals, http://journals.iucr.org/.
#
# The file may be used within the scientific community so long as
# proper attribution is given to the journal article from which the
# data were obtained.
#
data_2101337
loop_
_publ_author_name
'Bailey, R. D.'
'Pennington, W. T.'
_publ_section_title
;
 Tetramethylpyrazinium polyiodides
;
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              810
_journal_page_last               815
_journal_volume                  51
_journal_year                    1995
_chemical_formula_sum            'C30 H40 I6 N4 O4'
_chemical_formula_weight         1282.06
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_type_scat_source           'IntTabIV Table 2.2B'
_cell_angle_beta                 100.60(2)
_cell_formula_units_Z            1
_cell_length_a                   7.679(2)
_cell_length_b                   12.520(4)
_cell_length_c                   10.774(3)
_cell_measurement_reflns_used    35
_cell_measurement_temperature    294.0(10)
_cell_measurement_theta_max      29.4
_cell_measurement_theta_min      14.7
_cell_volume                     1019.9(6)
_diffrn_measurement_device       'Nicolet R3m/V'
_diffrn_measurement_method       \w/2\q
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.057
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       0
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            1995
_diffrn_reflns_theta_max         50.0
_diffrn_standards_decay_%        .0
_diffrn_standards_interval_count 97
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    4.60
_exptl_absorpt_correction_T_max  1.00
_exptl_absorpt_correction_T_min  0.79
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            'light brown'
_exptl_crystal_density_diffrn    2.09
_exptl_crystal_description       parallelepiped
_exptl_crystal_size_max          0.49
_exptl_crystal_size_mid          0.36
_exptl_crystal_size_min          0.30
_refine_diff_density_max         2.46
_refine_diff_density_min         -1.55
_refine_ls_goodness_of_fit_obs   2.69
_refine_ls_number_parameters     107
_refine_ls_number_reflns         1267
_refine_ls_R_factor_obs          0.0859
_refine_ls_shift/esd_max         0.105
_refine_ls_structure_factor_coef F
_refine_ls_weighting_scheme      1/[\s^2^(F)+0.0005(F^2^)]
_refine_ls_wR_factor_obs         0.0979
_reflns_number_observed          1267
_reflns_number_total             1801
_reflns_observed_criterion       I>3\s(I)
_[local]_cod_data_source_file    bk1013.cif
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,-y,-z
1/2+x,1/2-y,1/2+z
-1/2-x,-1/2+y,-1/2-z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
I(1) .0 .0 .0 .0600(10)
I(2) .0855(2) .22620(10) .00390(10) .0840(10)
O(1) .3556(17) .0176(10) -.3996(10) .074(5)
N(1) .4647(14) .0039(10) -.1268(10) .037(4)
C(1) .4460(16) -.0906(13) -.0680(11) .039(5)
C(2) .5147(16) .0916(11) -.0640(12) .034(4)
C(3) .389(2) -.1818(14) -.1442(14) .065(6)
C(4) .534(2) .1882(14) -.1371(14) .062(6)
C(5) .178(3) .0109(13) -.4482(13) .060(6)
C(6) .053(2) .0043(12) -.3731(13) .056(6)
C(7) -.127(3) .0007(14) -.4191(13) .064(6)
C(8) -.239(4) -.015(4) -.344(3) .084(17)
H(1A) .4010 .0370 -.3253 .11(3)
H(1B) .4420 .0063 -.2116 .11(3)
H(3A) .4805 -.2047 -.1885 .11(3)
H(3B) .3604 -.2390 -.0918 .11(3)
H(3C) .2860 -.1640 -.2050 .11(3)
H(4A) .6519 .1897 -.1556 .11(3)
H(4B) .4524 .1879 -.2155 .11(3)
H(4C) .5166 .2518 -.0910 .11(3)
H(6A) .0917 .0021 -.2835 .11(3)
H(7A) -.2138 .0059 -.3653 .11(3)
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_site_symmetry_2
_geom_bond_distance
_geom_bond_publ_flag
I(1) I(2) . 2.906(2) yes
N(1) C(1) . 1.361(19) yes
C(1) C(3) . 1.43(2) yes
C(2) C(4) . 1.47(2) yes
C(5) C(7) 2_554 1.42(2) yes
C(7) C(8) . 1.29(4) yes
O(1) C(5) . 1.38(2) yes
N(1) C(2) . 1.312(17) yes
C(1) C(2) 2_655 1.401(17) yes
C(5) C(6) . 1.36(3) yes
C(6) C(7) . 1.38(3) yes
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle_site_symmetry_3
_geom_angle
_geom_angle_publ_flag
C(1) N(1) C(2) . 122.2(11) yes
N(1) C(1) C(2) 2_655 117.3(12) yes
N(1) C(2) C(4) . 117.5(12) yes
C(4) C(2) C(1) 2_655 122.0(13) yes
O(1) C(5) C(7) 2_554 117.9(16) yes
C(5) C(6) C(7) . 123.5(14) yes
C(6) C(7) C(5) 2_554 116.4(17) yes
N(1) C(1) C(3) . 118.3(11) yes
C(3) C(1) C(2) 2_655 124.4(14) yes
N(1) C(2) C(1) 2_655 120.5(13) yes
O(1) C(5) C(6) . 122.2(13) yes
C(6) C(5) C(7) 2_554 119.6(16) yes
C(6) C(7) C(8) . 120.6(17) yes
C(8) C(7) C(5) 2_554 121.(2) yes
_cod_database_code 2101337