#------------------------------------------------------------------------------
#$Date: 2016-03-22 12:26:49 +0200 (Tue, 22 Mar 2016) $
#$Revision: 178950 $
#$URL: svn://www.crystallography.net/cod/cif/4/11/79/4117904.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_4117904
loop_
_publ_author_name
'James R. Neilson'
'Tyrel M. McQueen'
_publ_contact_author_address     'Dept of Chem Johns Hopkins University'
_publ_contact_author_email       mcqueen@jhu.edu
_publ_contact_author_name        'T. M. McQueen'
_publ_section_title
;
 Bonding, Ion Mobility, and Rate-Limiting Steps in Deintercalation
 Reactions with ThCr2Si2-type KNi2Se2
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              7750
_journal_page_last               7757
_journal_paper_doi               10.1021/ja212012k
_journal_volume                  134
_journal_year                    2012
_chemical_formula_sum            'K0.95 Ni2 Se2'
_chemical_formula_weight         312.45
_chemical_name_common            'Potassium Nickel Selenide'
_chemical_name_systematic        'Potassium Dinickel Diselenide'
_space_group_IT_number           139
_symmetry_cell_setting           tetragonal
_symmetry_Int_Tables_number      139
_symmetry_space_group_name_Hall  '-I 4 2'
_symmetry_space_group_name_H-M   'I 4/m m m'
_cell_angle_alpha                90.0
_cell_angle_beta                 90.0
_cell_angle_gamma                90.0
_cell_formula_units_Z            2
_cell_length_a                   3.9061(1)
_cell_length_b                   3.9061
_cell_length_c                   13.4278(3)
_cell_measurement_temperature    300
_cell_volume                     204.876(7)
_computing_structure_refinement  GSAS
_diffrn_ambient_temperature      300
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.2127
_diffrn_radiation_wavelength_details '11-ID-B Advanced Photon Source'
_exptl_crystal_density_diffrn    5.065
_refine_ls_goodness_of_fit_all   6.70
_refine_ls_matrix_type           full
_refine_ls_number_parameters     27
_refine_ls_number_restraints     0
_refine_ls_shift/su_max          0.08
_refine_ls_shift/su_mean         0.01
_cod_data_source_file            ja212012k_si_003.cif
_cod_data_source_block           K095NI2SE2_publ
_cod_database_code               4117904
loop_
_symmetry_equiv_pos_site_id
_symmetry_equiv_pos_as_xyz
1 +x,+y,+z
2 -y,+x,+z
3 -x,-y,+z
4 +y,-x,+z
5 -x,+y,+z
6 -y,-x,+z
7 +x,-y,+z
8 +y,+x,+z
-1 -x,-y,-z
-2 +y,-x,-z
-3 +x,+y,-z
-4 -y,+x,-z
-5 +x,-y,-z
-6 +y,+x,-z
-7 -x,+y,-z
-8 -y,-x,-z
101 +x+1/2,+y+1/2,+z+1/2
102 -y+1/2,+x+1/2,+z+1/2
103 -x+1/2,-y+1/2,+z+1/2
104 +y+1/2,-x+1/2,+z+1/2
105 -x+1/2,+y+1/2,+z+1/2
106 -y+1/2,-x+1/2,+z+1/2
107 +x+1/2,-y+1/2,+z+1/2
108 +y+1/2,+x+1/2,+z+1/2
-101 -x+1/2,-y+1/2,-z+1/2
-102 +y+1/2,-x+1/2,-z+1/2
-103 +x+1/2,+y+1/2,-z+1/2
-104 -y+1/2,+x+1/2,-z+1/2
-105 +x+1/2,-y+1/2,-z+1/2
-106 +y+1/2,+x+1/2,-z+1/2
-107 -x+1/2,+y+1/2,-z+1/2
-108 -y+1/2,-x+1/2,-z+1/2
loop_
_atom_site_type_symbol
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_thermal_displace_type
_atom_site_U_iso_or_equiv
_atom_site_symmetry_multiplicity
K K1 0.0 0.0 0.0 0.955(4) Uiso 0.013(1) 2
Ni Ni1 0.0 0.5 0.25 0.993(1) Uiso 0.0123(3) 4
Se Se1 0.0 0.0 0.35342(7) 1.0 Uiso 0.0124(2) 4
Ni Ni2 0.0 0.0 0.0 0.013(2) Uiso 0.01(3) 2
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
K1 K1 K1 90.0
K1 K1 K1 90.0
K1 K1 K1 180.0
K1 K1 Se1 54.841(7)
K1 K1 Se1 54.841(7)
K1 K1 Se1 125.159(7)
K1 K1 Se1 125.159(7)
K1 K1 Se1 54.841(7)
K1 K1 Se1 54.841(7)
K1 K1 Se1 125.159(7)
K1 K1 Se1 125.159(7)
K1 K1 K1 180.0
K1 K1 K1 90.0
K1 K1 Se1 54.841(7)
K1 K1 Se1 125.159(7)
K1 K1 Se1 54.841(7)
K1 K1 Se1 125.159(7)
K1 K1 Se1 54.841(7)
K1 K1 Se1 125.159(7)
K1 K1 Se1 54.841(7)
K1 K1 Se1 125.159(7)
K1 K1 K1 90.0
K1 K1 Se1 125.159(7)
K1 K1 Se1 54.841(7)
K1 K1 Se1 125.159(7)
K1 K1 Se1 54.841(7)
K1 K1 Se1 125.159(7)
K1 K1 Se1 54.841(7)
K1 K1 Se1 125.159(7)
K1 K1 Se1 54.841(7)
K1 K1 Se1 125.159(7)
K1 K1 Se1 125.159(7)
K1 K1 Se1 54.841(7)
K1 K1 Se1 54.841(7)
K1 K1 Se1 125.159(7)
K1 K1 Se1 125.159(7)
K1 K1 Se1 54.841(7)
K1 K1 Se1 54.841(7)
Se1 K1 Se1 70.318(14)
Se1 K1 Se1 70.318(14)
Se1 K1 Se1 109.050(27)
Se1 K1 Se1 70.950(27)
Se1 K1 Se1 109.682(14)
Se1 K1 Se1 109.682(14)
Se1 K1 Se1 180.0
Se1 K1 Se1 109.050(27)
Se1 K1 Se1 70.318(14)
Se1 K1 Se1 109.682(14)
Se1 K1 Se1 70.950(27)
Se1 K1 Se1 180.0
Se1 K1 Se1 109.682(14)
Se1 K1 Se1 70.318(14)
Se1 K1 Se1 109.682(14)
Se1 K1 Se1 180.0
Se1 K1 Se1 70.950(27)
Se1 K1 Se1 109.682(14)
Se1 K1 Se1 180.0
Se1 K1 Se1 109.682(14)
Se1 K1 Se1 109.682(14)
Se1 K1 Se1 70.950(27)
Se1 K1 Se1 70.318(14)
Se1 K1 Se1 70.318(14)
Se1 K1 Se1 109.050(27)
Se1 K1 Se1 109.050(27)
Se1 K1 Se1 70.318(14)
Se1 K1 Se1 70.318(14)
Se1 Ni1 Se1 109.17(4)
Se1 Ni1 Se1 109.620(20)
Se1 Ni1 Se1 109.620(20)
Se1 Ni1 Se1 109.620(20)
Se1 Ni1 Se1 109.620(20)
Se1 Ni1 Se1 109.17(4)
K1 Se1 K1 70.318(14)
K1 Se1 K1 70.318(14)
K1 Se1 K1 109.050(27)
K1 Se1 Ni1 82.356(5)
K1 Se1 Ni1 143.6687(14)
K1 Se1 Ni1 82.356(5)
K1 Se1 Ni1 143.6687(14)
K1 Se1 K1 109.050(27)
K1 Se1 K1 70.318(14)
K1 Se1 Ni1 143.6687(14)
K1 Se1 Ni1 82.356(5)
K1 Se1 Ni1 82.356(5)
K1 Se1 Ni1 143.6687(14)
K1 Se1 K1 70.318(14)
K1 Se1 Ni1 82.356(5)
K1 Se1 Ni1 143.6687(14)
K1 Se1 Ni1 143.6687(14)
K1 Se1 Ni1 82.356(5)
K1 Se1 Ni1 143.6687(14)
K1 Se1 Ni1 82.356(5)
K1 Se1 Ni1 143.6687(14)
K1 Se1 Ni1 82.356(5)
Ni1 Se1 Ni1 109.17(4)
Ni1 Se1 Ni1 70.380(20)
Ni1 Se1 Ni1 70.380(20)
Ni1 Se1 Ni1 70.380(20)
Ni1 Se1 Ni1 70.380(20)
Ni1 Se1 Ni1 109.17(4)
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
K1 K1 3.90610(5)
K1 K1 3.90610(5)
K1 K1 3.90610(5)
K1 K1 3.90610(5)
K1 Ni1 3.88375(6)
K1 Ni1 3.88375(6)
K1 Ni1 3.88375(6)
K1 Ni1 3.88375(6)
K1 Ni1 3.88375(6)
K1 Ni1 3.88375(6)
K1 Ni1 3.88375(6)
K1 Ni1 3.88375(6)
K1 Se1 3.3916(6)
K1 Se1 3.3916(6)
K1 Se1 3.3916(6)
K1 Se1 3.3916(6)
K1 Se1 3.3916(6)
K1 Se1 3.3916(6)
K1 Se1 3.3916(6)
K1 Se1 3.3916(6)
K1 Ni2 3.90610(5)
K1 Ni2 3.90610(5)
K1 Ni2 3.90610(5)
K1 Ni2 3.90610(5)
Ni1 K1 3.88375(6)
Ni1 K1 3.88375(6)
Ni1 K1 3.88375(6)
Ni1 K1 3.88375(6)
Ni1 Ni1 2.76203(4)
Ni1 Ni1 2.76203(4)
Ni1 Ni1 2.76203(4)
Ni1 Ni1 2.76203(4)
Ni1 Se1 2.3964(6)
Ni1 Se1 2.3964(6)
Ni1 Se1 2.3964(6)
Ni1 Se1 2.3964(6)
Se1 K1 3.3916(6)
Se1 K1 3.3916(6)
Se1 K1 3.3916(6)
Se1 K1 3.3916(6)
Se1 Ni1 2.3964(6)
Se1 Ni1 2.3964(6)
Se1 Ni1 2.3964(6)
Se1 Ni1 2.3964(6)
Ni2 K1 3.90610(5)
Ni2 K1 3.90610(5)
Ni2 K1 3.90610(5)
Ni2 K1 3.90610(5)
