In the title compound, C
6H
13N
2+·H
2AsO
4−·H
2O, the component species interact by way of N—H
O, O—H
O and O—H
N hydrogen bonds, resulting in a layered structure.
Supporting information
CCDC reference: 643066
Key indicators
- Single-crystal X-ray study
- T = 120 K
- Mean (C-C) = 0.003 Å
- R factor = 0.026
- wR factor = 0.065
- Data-to-parameter ratio = 18.6
checkCIF/PLATON results
No syntax errors found
Alert level C
PLAT154_ALERT_1_C The su's on the Cell Angles are Equal (x 10000) 300 Deg.
0 ALERT level A = In general: serious problem
0 ALERT level B = Potentially serious problem
1 ALERT level C = Check and explain
0 ALERT level G = General alerts; check
1 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
0 ALERT type 2 Indicator that the structure model may be wrong or deficient
0 ALERT type 3 Indicator that the structure quality may be low
0 ALERT type 4 Improvement, methodology, query or suggestion
0 ALERT type 5 Informative message, check
Data collection: COLLECT (Nonius, 1998); cell refinement: SCALEPACK (Otwinowski & Minor, 1997); data reduction: SCALEPACK and DENZO (Otwinowski & Minor, 1997), and SORTAV (Blessing,
1995); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97.
4-Aza-1-azoniabicyclo[2.2.2]octane dihydrogenarsenate monohydrate
top
Crystal data top
C6H13N2+·AsH2O4−·H2O | Z = 2 |
Mr = 272.14 | F(000) = 280 |
Triclinic, P1 | Dx = 1.736 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 6.9515 (3) Å | Cell parameters from 2217 reflections |
b = 9.0103 (4) Å | θ = 2.9–27.5° |
c = 9.2845 (4) Å | µ = 3.27 mm−1 |
α = 91.710 (3)° | T = 120 K |
β = 103.604 (3)° | Slab, colourless |
γ = 111.720 (3)° | 0.24 × 0.14 × 0.04 mm |
V = 520.67 (4) Å3 | |
Data collection top
Nonius KappaCCD diffractometer | 2380 independent reflections |
Radiation source: fine-focus sealed tube | 2231 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.041 |
ω scans | θmax = 27.6°, θmin = 3.1° |
Absorption correction: multi-scan (SADABS; Bruker, 1999) | h = −9→8 |
Tmin = 0.508, Tmax = 0.881 | k = −11→11 |
10518 measured reflections | l = −12→12 |
Refinement top
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: difmap (O-H, N-H) and geom (C-H) |
R[F2 > 2σ(F2)] = 0.027 | H-atom parameters constrained |
wR(F2) = 0.065 | w = 1/[σ2(Fo2) + (0.0224P)2 + 0.5077P] where P = (Fo2 + 2Fc2)/3 |
S = 1.11 | (Δ/σ)max < 0.001 |
2380 reflections | Δρmax = 0.54 e Å−3 |
128 parameters | Δρmin = −0.78 e Å−3 |
0 restraints | Extinction correction: SHELXL97, Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.021 (2) |
Special details top
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes)
are estimated using the full covariance matrix. The cell e.s.d.'s are taken
into account individually in the estimation of e.s.d.'s in distances, angles
and torsion angles; correlations between e.s.d.'s in cell parameters are only
used when they are defined by crystal symmetry. An approximate (isotropic)
treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s.
planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor
wR and goodness of fit S are based on F2, conventional
R-factors R are based on F, with F set to zero for
negative F2. The threshold expression of F2 >
σ(F2) is used only for calculating R-factors(gt) etc.
and is not relevant to the choice of reflections for refinement.
R-factors based on F2 are statistically about twice as large
as those based on F, and R- factors based on ALL data will be
even larger. |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top | x | y | z | Uiso*/Ueq | |
As1 | 0.65267 (3) | 0.14830 (2) | 0.72146 (2) | 0.01423 (10) | |
O1 | 0.9047 (2) | 0.19882 (19) | 0.82113 (16) | 0.0186 (3) | |
O2 | 0.6216 (3) | 0.21008 (19) | 0.55540 (16) | 0.0205 (3) | |
O3 | 0.5391 (3) | 0.2245 (2) | 0.83434 (17) | 0.0222 (4) | |
H1 | 0.4379 | 0.2579 | 0.7826 | 0.027* | |
O4 | 0.5219 (3) | −0.05686 (18) | 0.70824 (17) | 0.0206 (3) | |
H2 | 0.4879 | −0.0952 | 0.6085 | 0.025* | |
O5 | 0.2508 (3) | 0.3304 (2) | 0.71010 (17) | 0.0222 (4) | |
H3 | 0.1405 | 0.2998 | 0.7471 | 0.027* | |
H4 | 0.2033 | 0.3338 | 0.6101 | 0.027* | |
N1 | 0.1288 (3) | 0.3163 (2) | 0.3963 (2) | 0.0167 (4) | |
N2 | 0.0109 (3) | 0.2613 (2) | 0.11375 (19) | 0.0150 (4) | |
H5 | −0.0327 | 0.2413 | 0.0099 | 0.018* | |
C1 | 0.0228 (4) | 0.1409 (3) | 0.3478 (2) | 0.0185 (5) | |
H1A | −0.0959 | 0.0935 | 0.3954 | 0.022* | |
H1B | 0.1274 | 0.0901 | 0.3802 | 0.022* | |
C2 | 0.3179 (4) | 0.3838 (3) | 0.3351 (2) | 0.0180 (4) | |
H2A | 0.4276 | 0.3418 | 0.3817 | 0.022* | |
H2B | 0.3820 | 0.5026 | 0.3593 | 0.022* | |
C3 | −0.0227 (4) | 0.3922 (3) | 0.3374 (2) | 0.0174 (4) | |
H3A | 0.0431 | 0.5083 | 0.3765 | 0.021* | |
H3B | −0.1542 | 0.3423 | 0.3717 | 0.021* | |
C4 | −0.0667 (4) | 0.1060 (3) | 0.1762 (2) | 0.0215 (5) | |
H4A | −0.0161 | 0.0288 | 0.1353 | 0.026* | |
H4B | −0.2256 | 0.0583 | 0.1489 | 0.026* | |
C5 | 0.2512 (4) | 0.3377 (3) | 0.1639 (2) | 0.0218 (5) | |
H5A | 0.3047 | 0.4349 | 0.1144 | 0.026* | |
H5B | 0.3131 | 0.2612 | 0.1373 | 0.026* | |
C6 | −0.0825 (4) | 0.3718 (3) | 0.1651 (2) | 0.0241 (5) | |
H6A | −0.2405 | 0.3257 | 0.1245 | 0.029* | |
H6B | −0.0241 | 0.4777 | 0.1294 | 0.029* | |
Atomic displacement parameters (Å2) top | U11 | U22 | U33 | U12 | U13 | U23 |
As1 | 0.01670 (14) | 0.01544 (13) | 0.00860 (13) | 0.00522 (9) | 0.00178 (9) | −0.00091 (8) |
O1 | 0.0156 (7) | 0.0257 (8) | 0.0112 (7) | 0.0058 (7) | 0.0017 (6) | −0.0017 (6) |
O2 | 0.0307 (9) | 0.0160 (8) | 0.0107 (7) | 0.0064 (7) | 0.0022 (6) | 0.0008 (6) |
O3 | 0.0268 (9) | 0.0324 (9) | 0.0134 (8) | 0.0195 (8) | 0.0035 (7) | −0.0009 (7) |
O4 | 0.0297 (9) | 0.0137 (7) | 0.0117 (7) | 0.0028 (7) | 0.0025 (7) | −0.0003 (6) |
O5 | 0.0194 (8) | 0.0346 (10) | 0.0153 (8) | 0.0121 (7) | 0.0063 (7) | 0.0057 (7) |
N1 | 0.0197 (9) | 0.0177 (9) | 0.0124 (9) | 0.0069 (7) | 0.0046 (7) | 0.0015 (7) |
N2 | 0.0177 (9) | 0.0155 (9) | 0.0097 (8) | 0.0053 (7) | 0.0019 (7) | −0.0007 (7) |
C1 | 0.0227 (11) | 0.0155 (10) | 0.0166 (11) | 0.0065 (9) | 0.0055 (9) | 0.0033 (8) |
C2 | 0.0160 (10) | 0.0216 (11) | 0.0134 (10) | 0.0053 (9) | 0.0019 (8) | 0.0006 (8) |
C3 | 0.0213 (11) | 0.0189 (11) | 0.0116 (10) | 0.0077 (9) | 0.0042 (9) | 0.0000 (8) |
C4 | 0.0284 (12) | 0.0161 (11) | 0.0171 (11) | 0.0049 (9) | 0.0072 (10) | 0.0003 (8) |
C5 | 0.0169 (11) | 0.0289 (13) | 0.0142 (11) | 0.0030 (9) | 0.0043 (9) | 0.0003 (9) |
C6 | 0.0299 (13) | 0.0359 (14) | 0.0121 (10) | 0.0219 (11) | 0.0015 (9) | −0.0028 (9) |
Geometric parameters (Å, º) top
As1—O2 | 1.6483 (15) | C1—C4 | 1.544 (3) |
As1—O1 | 1.6598 (15) | C1—H1A | 0.9900 |
As1—O3 | 1.7151 (15) | C1—H1B | 0.9900 |
As1—O4 | 1.7172 (15) | C2—C5 | 1.545 (3) |
O3—H1 | 0.9068 | C2—H2A | 0.9900 |
O4—H2 | 0.9217 | C2—H2B | 0.9900 |
O5—H3 | 0.8686 | C3—C6 | 1.543 (3) |
O5—H4 | 0.9152 | C3—H3A | 0.9900 |
N1—C3 | 1.470 (3) | C3—H3B | 0.9900 |
N1—C1 | 1.477 (3) | C4—H4A | 0.9900 |
N1—C2 | 1.483 (3) | C4—H4B | 0.9900 |
N2—C4 | 1.491 (3) | C5—H5A | 0.9900 |
N2—C6 | 1.495 (3) | C5—H5B | 0.9900 |
N2—C5 | 1.499 (3) | C6—H6A | 0.9900 |
N2—H5 | 0.9300 | C6—H6B | 0.9900 |
| | | |
O2—As1—O1 | 115.74 (8) | N1—C2—H2B | 109.6 |
O2—As1—O3 | 112.12 (8) | C5—C2—H2B | 109.6 |
O1—As1—O3 | 104.37 (8) | H2A—C2—H2B | 108.1 |
O2—As1—O4 | 111.19 (8) | N1—C3—C6 | 110.66 (17) |
O1—As1—O4 | 108.29 (8) | N1—C3—H3A | 109.5 |
O3—As1—O4 | 104.32 (8) | C6—C3—H3A | 109.5 |
As1—O3—H1 | 113.1 | N1—C3—H3B | 109.5 |
As1—O4—H2 | 105.9 | C6—C3—H3B | 109.5 |
H3—O5—H4 | 108.2 | H3A—C3—H3B | 108.1 |
C3—N1—C1 | 109.10 (17) | N2—C4—C1 | 108.00 (17) |
C3—N1—C2 | 108.82 (17) | N2—C4—H4A | 110.1 |
C1—N1—C2 | 109.11 (17) | C1—C4—H4A | 110.1 |
C4—N2—C6 | 109.75 (18) | N2—C4—H4B | 110.1 |
C4—N2—C5 | 109.68 (18) | C1—C4—H4B | 110.1 |
C6—N2—C5 | 110.04 (18) | H4A—C4—H4B | 108.4 |
C4—N2—H5 | 109.1 | N2—C5—C2 | 107.90 (17) |
C6—N2—H5 | 109.1 | N2—C5—H5A | 110.1 |
C5—N2—H5 | 109.1 | C2—C5—H5A | 110.1 |
N1—C1—C4 | 110.59 (18) | N2—C5—H5B | 110.1 |
N1—C1—H1A | 109.5 | C2—C5—H5B | 110.1 |
C4—C1—H1A | 109.5 | H5A—C5—H5B | 108.4 |
N1—C1—H1B | 109.5 | N2—C6—C3 | 108.04 (19) |
C4—C1—H1B | 109.5 | N2—C6—H6A | 110.1 |
H1A—C1—H1B | 108.1 | C3—C6—H6A | 110.1 |
N1—C2—C5 | 110.42 (17) | N2—C6—H6B | 110.1 |
N1—C2—H2A | 109.6 | C3—C6—H6B | 110.1 |
C5—C2—H2A | 109.6 | H6A—C6—H6B | 108.4 |
| | | |
C3—N1—C1—C4 | 54.7 (2) | N1—C1—C4—N2 | 7.9 (3) |
C2—N1—C1—C4 | −64.1 (2) | C4—N2—C5—C2 | −65.7 (2) |
C3—N1—C2—C5 | −64.9 (2) | C6—N2—C5—C2 | 55.1 (2) |
C1—N1—C2—C5 | 54.1 (2) | N1—C2—C5—N2 | 8.7 (3) |
C1—N1—C3—C6 | −63.9 (2) | C4—N2—C6—C3 | 56.1 (2) |
C2—N1—C3—C6 | 55.1 (2) | C5—N2—C6—C3 | −64.7 (2) |
C6—N2—C4—C1 | −64.9 (2) | N1—C3—C6—N2 | 7.7 (3) |
C5—N2—C4—C1 | 56.1 (2) | | |
Hydrogen-bond geometry (Å, º) top
D—H···A | D—H | H···A | D···A | D—H···A |
O3—H1···O5 | 0.91 | 1.68 | 2.579 (2) | 172 |
O4—H2···O2i | 0.92 | 1.66 | 2.554 (2) | 164 |
O5—H3···O1ii | 0.87 | 1.86 | 2.718 (2) | 170 |
O5—H4···N1 | 0.92 | 1.92 | 2.821 (2) | 170 |
N2—H5···O1iii | 0.93 | 1.70 | 2.627 (2) | 175 |
C2—H2A···O2 | 0.99 | 2.47 | 3.420 (3) | 161 |
C4—H4A···O1i | 0.99 | 2.46 | 3.330 (3) | 147 |
Symmetry codes: (i) −x+1, −y, −z+1; (ii) x−1, y, z; (iii) x−1, y, z−1. |