#------------------------------------------------------------------------------
#$Date: 2016-03-25 14:15:30 +0200 (Fri, 25 Mar 2016) $
#$Revision: 179887 $
#$URL: svn://www.crystallography.net/cod/cif/7/01/83/7018307.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_7018307
loop_
_publ_author_name
'Xu, Fei'
'Matsumoto, Kazuhiko'
'Hagiwara, Rika'
_publ_section_title
;
 Effects of alkyl chain length and anion size on thermal and structural
 properties for 1-alkyl-3-methylimidazolium hexafluorocomplex salts
 (C(x)MImAF(6), x = 14, 16 and 18; A = P, As, Sb, Nb and Ta).
;
_journal_issue                   12
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              3494
_journal_page_last               3502
_journal_paper_doi               10.1039/c2dt11693f
_journal_volume                  41
_journal_year                    2012
_chemical_formula_moiety
;
(C22 N2 H43 +), (As F6 -)
;
_chemical_formula_sum            'C22 H43 As F6 N2'
_chemical_formula_weight         524.50
_chemical_melting_point          351.1
_chemical_name_common            C18MImAsF6
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yab'
_symmetry_space_group_name_H-M   'P 1 21/a 1'
_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                 91.6869(18)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.7983(11)
_cell_length_b                   9.6239(13)
_cell_length_c                   29.575(3)
_cell_measurement_reflns_used    6466
_cell_measurement_temperature    328
_cell_measurement_theta_max      54.88
_cell_measurement_theta_min      6.07
_cell_volume                     2787.7(6)
_computing_cell_refinement       'RAPID AUTO 2.40 (Rigaku 2006)'
_computing_data_collection       'Rigaku R-AXIS Rapid-II'
_computing_data_reduction        'RAPID AUTO 2.40 (Rigaku 2006)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR92 (Altmare et al., 1994)'
_diffrn_ambient_temperature      328
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Rigaku R-AXIS RapidII'
_diffrn_measurement_method       'imaging plate'
_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  0.0526
_diffrn_reflns_av_sigmaI/netI    0.0539
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       35
_diffrn_reflns_limit_l_min       -35
_diffrn_reflns_number            21446
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.03
_exptl_absorpt_coefficient_mu    1.270
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.1884
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'RAPID AUTO 2.40 (Rigaku 2006)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.250
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       platelet
_exptl_crystal_F_000             1104
_exptl_crystal_size_max          0.70
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.525
_refine_diff_density_min         -0.485
_refine_diff_density_rms         0.067
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.933
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     282
_refine_ls_number_reflns         4899
_refine_ls_number_restraints     77
_refine_ls_restrained_S_all      0.977
_refine_ls_R_factor_all          0.1810
_refine_ls_R_factor_gt           0.0853
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[σ²(Fo²)+(0.1959P)²+0.0000P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2410
_refine_ls_wR_factor_ref         0.3303
_reflns_number_gt                1690
_reflns_number_total             4899
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt11693f.txt
_cod_data_source_block           C18MImAsF6-55oC
_cod_original_cell_volume        2787.6(6)
_cod_original_sg_symbol_H-M      P21/a
_cod_database_code               7018307
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x+1/2, y+1/2, -z'
'-x, -y, -z'
'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
As1 As -0.16670(9) 0.02836(11) 0.10309(4) 0.1464(7) Uani 1 1 d .
F4 F -0.2565(11) -0.0391(12) 0.1445(3) 0.292(5) Uani 1 1 d .
F3 F -0.2938(8) 0.1317(8) 0.0942(4) 0.319(5) Uani 1 1 d .
F2 F -0.0855(9) 0.0802(16) 0.0580(3) 0.339(6) Uani 1 1 d .
F5 F -0.0410(7) -0.0864(9) 0.1132(3) 0.249(3) Uani 1 1 d .
N1 N 0.3669(10) -0.0246(10) 0.1083(3) 0.146(2) Uani 1 1 d D
F6 F -0.0778(9) 0.1349(9) 0.1358(4) 0.301(5) Uani 1 1 d .
F1 F -0.2529(6) -0.0875(8) 0.0698(3) 0.225(3) Uani 1 1 d .
C21 C -0.615(2) -0.151(3) 0.6753(7) 0.316(9) Uani 1 1 d DU
H21A H -0.6219 -0.2510 0.6731 0.379 Uiso 1 1 calc R
H21B H -0.6954 -0.1120 0.6600 0.379 Uiso 1 1 calc R
C9 C 0.1400(16) -0.1436(19) 0.2433(6) 0.317(9) Uani 1 1 d DU
H9A H 0.0521 -0.1344 0.2275 0.381 Uiso 1 1 calc R
H9B H 0.1727 -0.2383 0.2407 0.381 Uiso 1 1 calc R
C18 C -0.3674(19) -0.100(2) 0.5778(9) 0.279(9) Uani 1 1 d D
H18A H -0.2847 -0.1238 0.5950 0.335 Uiso 1 1 calc R
H18B H -0.3731 0.0005 0.5767 0.335 Uiso 1 1 calc R
C17 C -0.354(2) -0.1530(19) 0.5304(7) 0.263(8) Uani 1 1 d D
H17A H -0.3495 -0.2536 0.5316 0.316 Uiso 1 1 calc R
H17B H -0.4363 -0.1285 0.5133 0.316 Uiso 1 1 calc R
C13 C -0.0928(19) -0.1631(19) 0.3864(7) 0.271(8) Uani 1 1 d D
H13A H -0.0809 -0.2626 0.3897 0.325 Uiso 1 1 calc R
H13B H -0.1775 -0.1469 0.3694 0.325 Uiso 1 1 calc R
N3 N 0.3993(9) -0.1223(8) 0.0459(4) 0.138(2) Uani 1 1 d .
C22 C -0.619(2) -0.111(3) 0.7243(8) 0.373(11) Uani 1 1 d DU
H22A H -0.5989 -0.0131 0.7271 0.448 Uiso 1 1 calc R
H22B H -0.5477 -0.1618 0.7406 0.448 Uiso 1 1 calc R
C12 C 0.0240(17) -0.1042(19) 0.3609(7) 0.262(7) Uani 1 1 d DU
H12A H 0.0165 -0.0037 0.3595 0.314 Uiso 1 1 calc R
H12B H 0.1097 -0.1275 0.3763 0.314 Uiso 1 1 calc R
C10 C 0.1357(17) -0.096(2) 0.2918(6) 0.303(8) Uani 1 1 d DU
H10A H 0.2209 -0.1192 0.3075 0.363 Uiso 1 1 calc R
H10B H 0.1249 0.0045 0.2928 0.363 Uiso 1 1 calc R
C15 C -0.2154(19) -0.1550(18) 0.4576(7) 0.267(9) Uani 1 1 d D
H15A H -0.2036 -0.2550 0.4591 0.321 Uiso 1 1 calc R
H15B H -0.2989 -0.1373 0.4401 0.321 Uiso 1 1 calc R
C24 C 0.4596(11) -0.2090(12) 0.0114(4) 0.190(4) Uani 1 1 d .
H24A H 0.4594 -0.1595 -0.0168 0.285 Uiso 1 1 calc R
H24B H 0.4075 -0.2929 0.0078 0.285 Uiso 1 1 calc R
H24C H 0.5519 -0.2317 0.0205 0.285 Uiso 1 1 calc R
C5 C 0.2678(13) 0.0171(12) 0.0808(6) 0.167(4) Uani 1 1 d .
H5 H 0.1976 0.0772 0.0882 0.201 Uiso 1 1 calc R
C20 C -0.4937(19) -0.106(3) 0.6506(7) 0.305(8) Uani 1 1 d DU
H20A H -0.4130 -0.1391 0.6671 0.366 Uiso 1 1 calc R
H20B H -0.4904 -0.0051 0.6510 0.366 Uiso 1 1 calc R
C14 C -0.1009(17) -0.097(2) 0.4326(8) 0.254(8) Uani 1 1 d D
H14A H -0.0161 -0.1128 0.4495 0.305 Uiso 1 1 calc R
H14B H -0.1130 0.0028 0.4292 0.305 Uiso 1 1 calc R
C11 C 0.0206(17) -0.1629(19) 0.3145(6) 0.285(8) Uani 1 1 d DU
H11A H 0.0324 -0.2630 0.3154 0.342 Uiso 1 1 calc R
H11B H -0.0654 -0.1417 0.2990 0.342 Uiso 1 1 calc R
C2 C 0.4443(9) -0.1108(10) 0.0874(5) 0.145(3) Uani 1 1 d D
H2 H 0.5197 -0.1569 0.1000 0.174 Uiso 1 1 calc R
C19 C -0.486(2) -0.153(2) 0.6027(7) 0.263(8) Uani 1 1 d D
H19A H -0.4830 -0.2536 0.6023 0.316 Uiso 1 1 calc R
H19B H -0.5686 -0.1244 0.5865 0.316 Uiso 1 1 calc R
C23 C -0.753(3) -0.140(4) 0.7464(8) 0.427(15) Uani 1 1 d DU
H23A H -0.8222 -0.0802 0.7335 0.641 Uiso 1 1 calc R
H23B H -0.7431 -0.1216 0.7783 0.641 Uiso 1 1 calc R
H23C H -0.7781 -0.2350 0.7417 0.641 Uiso 1 1 calc R
C16 C -0.2355(17) -0.1028(19) 0.5051(8) 0.251(8) Uani 1 1 d D
H16A H -0.1536 -0.1253 0.5228 0.302 Uiso 1 1 calc R
H16B H -0.2413 -0.0023 0.5037 0.302 Uiso 1 1 calc R
C4 C 0.2844(12) -0.0398(13) 0.0413(5) 0.157(3) Uani 1 1 d .
H4 H 0.2300 -0.0274 0.0153 0.188 Uiso 1 1 calc R
C7 C 0.2770(16) -0.0820(19) 0.1810(4) 0.307(8) Uani 1 1 d DU
H7A H 0.1929 -0.0857 0.1629 0.368 Uiso 1 1 calc R
H7B H 0.3148 -0.1751 0.1827 0.368 Uiso 1 1 calc R
C8 C 0.2480(19) -0.033(2) 0.2263(5) 0.312(9) Uani 1 1 d DU
H8A H 0.2097 0.0595 0.2255 0.374 Uiso 1 1 calc R
H8B H 0.3299 -0.0335 0.2456 0.374 Uiso 1 1 calc R
C6 C 0.3811(14) 0.0177(13) 0.1581(4) 0.206(5) Uani 1 1 d D
H6A H 0.3565 0.1144 0.1623 0.247 Uiso 1 1 calc R
H6B H 0.4733 0.0026 0.1699 0.247 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'
F F 0.0171 0.0103 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
As As 0.0499 2.0058 '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
F3 As1 F6 96.0(5)
F3 As1 F2 94.1(6)
F6 As1 F2 91.5(6)
F3 As1 F4 86.4(5)
F6 As1 F4 95.4(6)
F2 As1 F4 173.0(5)
F3 As1 F5 176.6(4)
F6 As1 F5 86.1(4)
F2 As1 F5 88.5(6)
F4 As1 F5 90.8(5)
F3 As1 F1 86.7(5)
F6 As1 F1 177.3(4)
F2 As1 F1 88.5(5)
F4 As1 F1 84.5(5)
F5 As1 F1 91.2(4)
C2 N1 C5 109.4(10)
C2 N1 C6 126.4(12)
C5 N1 C6 124.1(12)
C20 C21 C22 117(2)
C20 C21 H21A 108.1
C22 C21 H21A 108.1
C20 C21 H21B 108.1
C22 C21 H21B 108.1
H21A C21 H21B 107.3
C10 C9 C8 97.7(12)
C10 C9 H9A 112.2
C8 C9 H9A 112.2
C10 C9 H9B 112.2
C8 C9 H9B 112.2
H9A C9 H9B 109.8
C19 C18 C17 116.1(17)
C19 C18 H18A 108.3
C17 C18 H18A 108.3
C19 C18 H18B 108.3
C17 C18 H18B 108.3
H18A C18 H18B 107.4
C16 C17 C18 117.1(18)
C16 C17 H17A 108.0
C18 C17 H17A 108.0
C16 C17 H17B 108.0
C18 C17 H17B 108.0
H17A C17 H17B 107.3
C12 C13 C14 110.8(16)
C12 C13 H13A 109.5
C14 C13 H13A 109.5
C12 C13 H13B 109.5
C14 C13 H13B 109.5
H13A C13 H13B 108.1
C2 N3 C4 107.4(9)
C2 N3 C24 125.3(10)
C4 N3 C24 127.3(12)
C21 C22 C23 115(2)
C21 C22 H22A 108.5
C23 C22 H22A 108.5
C21 C22 H22B 108.5
C23 C22 H22B 108.5
H22A C22 H22B 107.5
C11 C12 C13 108.9(16)
C11 C12 H12A 109.9
C13 C12 H12A 109.9
C11 C12 H12B 109.9
C13 C12 H12B 109.9
H12A C12 H12B 108.3
C11 C10 C9 110.0(13)
C11 C10 H10A 109.7
C9 C10 H10A 109.7
C11 C10 H10B 109.7
C9 C10 H10B 109.7
H10A C10 H10B 108.2
C14 C15 C16 117.6(18)
C14 C15 H15A 107.9
C16 C15 H15A 107.9
C14 C15 H15B 107.9
C16 C15 H15B 107.9
H15A C15 H15B 107.2
N3 C24 H24A 109.5
N3 C24 H24B 109.5
H24A C24 H24B 109.5
N3 C24 H24C 109.5
H24A C24 H24C 109.5
H24B C24 H24C 109.5
C4 C5 N1 108.5(11)
C4 C5 H5 125.7
N1 C5 H5 125.7
C21 C20 C19 116.5(19)
C21 C20 H20A 108.2
C19 C20 H20A 108.2
C21 C20 H20B 108.2
C19 C20 H20B 108.2
H20A C20 H20B 107.3
C15 C14 C13 110.7(17)
C15 C14 H14A 109.5
C13 C14 H14A 109.5
C15 C14 H14B 109.5
C13 C14 H14B 109.5
H14A C14 H14B 108.1
C10 C11 C12 104.9(15)
C10 C11 H11A 110.8
C12 C11 H11A 110.8
C10 C11 H11B 110.8
C12 C11 H11B 110.8
H11A C11 H11B 108.8
N1 C2 N3 108.6(9)
N1 C2 H2 125.7
N3 C2 H2 125.7
C18 C19 C20 115.5(18)
C18 C19 H19A 108.4
C20 C19 H19A 108.4
C18 C19 H19B 108.4
C20 C19 H19B 108.4
H19A C19 H19B 107.5
C22 C23 H23A 109.5
C22 C23 H23B 109.5
H23A C23 H23B 109.5
C22 C23 H23C 109.5
H23A C23 H23C 109.5
H23B C23 H23C 109.5
C17 C16 C15 119.2(18)
C17 C16 H16A 107.5
C15 C16 H16A 107.5
C17 C16 H16B 107.5
C15 C16 H16B 107.5
H16A C16 H16B 107.0
C5 C4 N3 106.0(11)
C5 C4 H4 127.0
N3 C4 H4 127.0
C8 C7 C6 110.4(11)
C8 C7 H7A 109.6
C6 C7 H7A 109.6
C8 C7 H7B 109.6
C6 C7 H7B 109.6
H7A C7 H7B 108.1
C7 C8 C9 103.1(11)
C7 C8 H8A 111.2
C9 C8 H8A 111.2
C7 C8 H8B 111.2
C9 C8 H8B 111.2
H8A C8 H8B 109.1
N1 C6 C7 102.2(9)
N1 C6 H6A 111.3
C7 C6 H6A 111.3
N1 C6 H6B 111.3
C7 C6 H6B 111.3
H6A C6 H6B 109.2
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
As1 F3 1.609(7)
As1 F6 1.641(7)
As1 F2 1.649(7)
As1 F4 1.661(10)
As1 F5 1.675(7)
As1 F1 1.695(6)
N1 C2 1.295(5)
N1 C5 1.311(14)
N1 C6 1.528(11)
C21 C20 1.479(13)
C21 C22 1.498(14)
C21 H21A 0.9700
C21 H21B 0.9700
C9 C10 1.510(13)
C9 C8 1.589(13)
C9 H9A 0.9700
C9 H9B 0.9700
C18 C19 1.481(13)
C18 C17 1.501(13)
C18 H18A 0.9700
C18 H18B 0.9700
C17 C16 1.480(13)
C17 H17A 0.9700
C17 H17B 0.9700
C13 C12 1.499(13)
C13 C14 1.513(13)
C13 H13A 0.9700
C13 H13B 0.9700
N3 C2 1.295(11)
N3 C4 1.380(12)
N3 C24 1.457(12)
C22 C23 1.505(10)
C22 H22A 0.9700
C22 H22B 0.9700
C12 C11 1.483(12)
C12 H12A 0.9700
C12 H12B 0.9700
C10 C11 1.479(12)
C10 H10A 0.9700
C10 H10B 0.9700
C15 C14 1.473(12)
C15 C16 1.509(13)
C15 H15A 0.9700
C15 H15B 0.9700
C24 H24A 0.9600
C24 H24B 0.9600
C24 H24C 0.9600
C5 C4 1.306(14)
C5 H5 0.9300
C20 C19 1.493(13)
C20 H20A 0.9700
C20 H20B 0.9700
C14 H14A 0.9700
C14 H14B 0.9700
C11 H11A 0.9700
C11 H11B 0.9700
C2 H2 0.9300
C19 H19A 0.9700
C19 H19B 0.9700
C23 H23A 0.9600
C23 H23B 0.9600
C23 H23C 0.9600
C16 H16A 0.9700
C16 H16B 0.9700
C4 H4 0.9300
C7 C8 1.454(9)
C7 C6 1.570(9)
C7 H7A 0.9700
C7 H7B 0.9700
C8 H8A 0.9700
C8 H8B 0.9700
C6 H6A 0.9700
C6 H6B 0.9700
