organic compounds
4-[(1-Adamantyl)carbamoyl]pyridinium chloride
aOrdered Matter Science Research Center, Southeast University, Nanjing 210096, People's Republic of China
*Correspondence e-mail: wyingchun0107@126.com
In the title compound, C16H21N2O+·Cl−, the amide group makes a dihedral angle of 25.9 (1)° with respect to the pyridine ring. In the crystal, intermolecular N—H⋯Cl bonds and weak C—H⋯Cl and C—H⋯O contacts link the cations and the anions into layers parallel to the ac plane. The layers are packed along [010] by hydrophobic interactions between adamantane units.
Related literature
For biomedical properties of adamantane-1-amine derivatives, see: Lees (2005); Nayyar et al. (2007). For ferroelectric properties of pyridinium salts, see: Ye et al. (2010); Zhang et al. (2010).
Experimental
Crystal data
|
Refinement
|
Data collection: CrystalClear (Rigaku, 2005); cell CrystalClear; data reduction: CrystalClear; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL/PC (Sheldrick, 2008); software used to prepare material for publication: SHELXTL/PC.
Supporting information
https://doi.org/10.1107/S1600536810052499/si2302sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810052499/si2302Isup2.hkl
Isonicotinic acid 5 g was added in thionyl chloride (50 ml), and the mixture reacted at 353 K for 5 h. Then the solvate was removed under reduced pressure, the isonicotinoyl chloride was obtained. The l-aminodiamantane hydrochloride (10 mmol) and triethylamine 2.02 g (20 mmol) dissolved in chloroform (40 ml) at 273 K, then the isonicotinoyl chloride 1.51 g (10 mmol) was added. Then the reactant mixture was stired for 7 h at room temperature and some flaxen solid appeared. After filtering the mixture, the solid was dissolved in water and was neutralized with sodium carbonate, The mixed solution was extracted by dichloromethane. The N-(1-adamantyl)isonicotinamide was obtained when the dichloromethane was evaporated under reduced pressure.
The N(1-adamantyl)isonicotinamide 2.56 g (10 mmol) was dissolved in methanol and the chlorhydric acid 1 ml (12 mmol/ml) was added. The crystals suitable for
were grown by slow evaporation of the filter solution at room temperature.Positional parameters of all H atoms were calculated geometrically and were allowed to ride on the C and N atoms to which they are bonded, with N–H and C–H distances 0.90 Å and 0.96 Å, respectively. The isotropic displace ment parameters of the H atoms were refined freely with Uiso(H) = 1.7Ueq(N), and the Uiso(H) at carbon atoms range between 1.1 and 1.6Ueq(C).
The study of amantadine and its derivatives has attracted much attention owing to their multifunction and technological applications in many areas, such as biomedicine (Lees 2005; Nayyar et al.2007). Amantadine can crystallize in different space groups owing to its randomness. As one part of our systematic research on dielectric, ferroelectric, and phase-transition materials (Ye et al. 2010; Zhang et al. 2010), we synthesize the title compound and investigated its dielectric property. In the range of 110 K to its melting point (428–432 K), the
increases smoothly as a function of temperature. It means that this compound might not undergo a distinct structural in the measured temperature range.The
of the title compound contains one protonated N- (1-adamantyl)isonicotinamide basic ion and one negative chlorine ion (Fig. 1). The torsion angles of C2—C1—C6—O1 and C2—C1—C6—N2 are 24.5 (3) ånd -157.5 (2) °, C5—C1—C6—O1 and C5—C1—C6—N2 are -151.3 (2) ° and 26.7 (3) °. Intermolecular N—H···Cl bonds and weak C—H···Cl and C—H···O contacts link cationic molecules parallel to (1 0 1) (Table 1). The layers are packed by hydrophobic interactions between adamantane units along the b-axis (Fig 2).For biomedical properties of adamantane-1-amine derivatives, see: Lees (2005); Nayyar et al. (2007). For magnetic and ferroelectric properties of pyridinium salts, see: Ye et al. (2010); Zhang et al. (2010).
Data collection: CrystalClear (Rigaku, 2005); cell
CrystalClear (Rigaku, 2005); data reduction: CrystalClear (Rigaku, 2005); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL/PC (Sheldrick, 2008); software used to prepare material for publication: SHELXTL/PC (Sheldrick, 2008).C16H21N2O+·Cl− | F(000) = 624 |
Mr = 292.80 | Dx = 1.328 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 3642 reflections |
a = 7.117 (4) Å | θ = 2.9–27.6° |
b = 23.093 (13) Å | µ = 0.26 mm−1 |
c = 11.241 (5) Å | T = 293 K |
β = 127.56 (2)° | Prism, colourless |
V = 1464.5 (13) Å3 | 0.20 × 0.20 × 0.20 mm |
Z = 4 |
Rigaku SCXmini diffractometer | 3377 independent reflections |
Radiation source: fine-focus sealed tube | 2910 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.042 |
Detector resolution: 13.6612 pixels mm-1 | θmax = 27.6°, θmin = 2.9° |
ω scans | h = −9→9 |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | k = −30→30 |
Tmin = 0.950, Tmax = 0.950 | l = −14→14 |
14193 measured reflections |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.056 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.139 | H-atom parameters constrained |
S = 1.11 | w = 1/[σ2(Fo2) + (0.0598P)2 + 0.5955P] where P = (Fo2 + 2Fc2)/3 |
3377 reflections | (Δ/σ)max = 0.041 |
202 parameters | Δρmax = 0.23 e Å−3 |
0 restraints | Δρmin = −0.22 e Å−3 |
C16H21N2O+·Cl− | V = 1464.5 (13) Å3 |
Mr = 292.80 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 7.117 (4) Å | µ = 0.26 mm−1 |
b = 23.093 (13) Å | T = 293 K |
c = 11.241 (5) Å | 0.20 × 0.20 × 0.20 mm |
β = 127.56 (2)° |
Rigaku SCXmini diffractometer | 3377 independent reflections |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | 2910 reflections with I > 2σ(I) |
Tmin = 0.950, Tmax = 0.950 | Rint = 0.042 |
14193 measured reflections |
R[F2 > 2σ(F2)] = 0.056 | 0 restraints |
wR(F2) = 0.139 | H-atom parameters constrained |
S = 1.11 | Δρmax = 0.23 e Å−3 |
3377 reflections | Δρmin = −0.22 e Å−3 |
202 parameters |
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. |
x | y | z | Uiso*/Ueq | ||
Cl1 | 0.13642 (10) | −0.01867 (2) | 0.85883 (6) | 0.03808 (17) | |
O1 | 0.3301 (3) | −0.12489 (9) | 0.51605 (18) | 0.0531 (5) | |
N1 | 0.6627 (4) | −0.03832 (8) | 0.2831 (2) | 0.0406 (5) | |
H1A | 0.6865 | −0.0228 | 0.2198 | 0.070 (9)* | |
N2 | 0.7203 (3) | −0.11813 (8) | 0.71977 (19) | 0.0345 (4) | |
H2A | 0.8612 | −0.1036 | 0.7512 | 0.059 (8)* | |
C1 | 0.5926 (4) | −0.08374 (9) | 0.4772 (2) | 0.0307 (4) | |
C2 | 0.4096 (4) | −0.05633 (10) | 0.3459 (2) | 0.0375 (5) | |
H2B | 0.2555 | −0.0532 | 0.3221 | 0.050 (7)* | |
C3 | 0.4491 (4) | −0.03368 (10) | 0.2503 (3) | 0.0412 (5) | |
H3A | 0.3237 | −0.0144 | 0.1599 | 0.053 (8)* | |
C4 | 0.8423 (4) | −0.06503 (10) | 0.4063 (3) | 0.0426 (5) | |
H4A | 0.9931 | −0.0680 | 0.4254 | 0.053 (8)* | |
C5 | 0.8118 (4) | −0.08820 (10) | 0.5065 (3) | 0.0384 (5) | |
H5A | 0.9410 | −0.1072 | 0.5959 | 0.050 (7)* | |
C6 | 0.5359 (4) | −0.11061 (10) | 0.5753 (2) | 0.0349 (5) | |
C7 | 0.7100 (3) | −0.14894 (8) | 0.8312 (2) | 0.0286 (4) | |
C8 | 0.6137 (4) | −0.21041 (9) | 0.7764 (2) | 0.0381 (5) | |
H8A | 0.4549 | −0.2086 | 0.6847 | 0.043 (7)* | |
H8B | 0.7099 | −0.2307 | 0.7568 | 0.059 (8)* | |
C9 | 0.9648 (4) | −0.15297 (10) | 0.9762 (2) | 0.0404 (5) | |
H9A | 1.0617 | −0.1731 | 0.9569 | 0.057 (8)* | |
H9B | 1.0284 | −0.1147 | 1.0111 | 0.044 (7)* | |
C10 | 0.5588 (4) | −0.11689 (9) | 0.8641 (3) | 0.0376 (5) | |
H10A | 0.6192 | −0.0784 | 0.8989 | 0.050 (7)* | |
H10B | 0.3989 | −0.1139 | 0.7738 | 0.046 (7)* | |
C11 | 0.6166 (4) | −0.24278 (9) | 0.8968 (3) | 0.0415 (5) | |
H11A | 0.5551 | −0.2811 | 0.8615 | 0.057 (8)* | |
C12 | 0.4621 (4) | −0.21057 (10) | 0.9256 (3) | 0.0427 (5) | |
H12A | 0.3033 | −0.2080 | 0.8341 | 0.060 (8)* | |
H12B | 0.4575 | −0.2313 | 0.9978 | 0.060 (8)* | |
C13 | 0.5605 (4) | −0.15005 (10) | 0.9832 (3) | 0.0403 (5) | |
H13A | 0.4650 | −0.1300 | 1.0037 | 0.064 (8)* | |
C14 | 0.8703 (5) | −0.24643 (10) | 1.0405 (3) | 0.0463 (6) | |
H14A | 0.8734 | −0.2675 | 1.1153 | 0.056 (8)* | |
H14B | 0.9668 | −0.2668 | 1.0211 | 0.067 (9)* | |
C15 | 0.9674 (4) | −0.18568 (11) | 1.0960 (2) | 0.0419 (5) | |
H15A | 1.1271 | −0.1879 | 1.1867 | 0.053 (7)* | |
C16 | 0.8150 (5) | −0.15348 (11) | 1.1268 (3) | 0.0450 (6) | |
H16A | 0.8771 | −0.1152 | 1.1629 | 0.050 (7)* | |
H16B | 0.8180 | −0.1735 | 1.2028 | 0.059 (8)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0399 (3) | 0.0436 (3) | 0.0357 (3) | −0.0034 (2) | 0.0256 (3) | 0.0040 (2) |
O1 | 0.0297 (9) | 0.0891 (13) | 0.0340 (9) | −0.0059 (8) | 0.0160 (7) | 0.0178 (8) |
N1 | 0.0554 (12) | 0.0444 (10) | 0.0346 (10) | −0.0066 (9) | 0.0340 (10) | 0.0014 (8) |
N2 | 0.0293 (9) | 0.0497 (10) | 0.0246 (8) | −0.0055 (7) | 0.0166 (8) | 0.0054 (7) |
C1 | 0.0320 (10) | 0.0365 (10) | 0.0262 (10) | −0.0031 (8) | 0.0189 (9) | 0.0004 (8) |
C2 | 0.0336 (11) | 0.0460 (12) | 0.0328 (11) | 0.0025 (9) | 0.0203 (10) | 0.0092 (9) |
C3 | 0.0462 (13) | 0.0443 (12) | 0.0306 (11) | −0.0007 (10) | 0.0220 (11) | 0.0076 (9) |
C4 | 0.0419 (13) | 0.0553 (14) | 0.0440 (13) | −0.0019 (10) | 0.0331 (12) | −0.0004 (10) |
C5 | 0.0339 (11) | 0.0497 (13) | 0.0333 (11) | 0.0041 (9) | 0.0213 (10) | 0.0064 (9) |
C6 | 0.0307 (11) | 0.0459 (12) | 0.0296 (11) | −0.0006 (8) | 0.0191 (9) | 0.0068 (8) |
C7 | 0.0291 (10) | 0.0354 (10) | 0.0229 (9) | −0.0015 (8) | 0.0166 (8) | 0.0036 (7) |
C8 | 0.0458 (13) | 0.0383 (12) | 0.0332 (11) | −0.0039 (9) | 0.0257 (11) | −0.0036 (9) |
C9 | 0.0295 (11) | 0.0546 (14) | 0.0319 (11) | −0.0049 (9) | 0.0160 (10) | 0.0079 (10) |
C10 | 0.0453 (13) | 0.0372 (11) | 0.0369 (12) | 0.0088 (9) | 0.0286 (11) | 0.0078 (9) |
C11 | 0.0527 (14) | 0.0303 (11) | 0.0400 (12) | −0.0070 (9) | 0.0274 (11) | 0.0006 (9) |
C12 | 0.0372 (12) | 0.0569 (14) | 0.0361 (12) | −0.0047 (10) | 0.0233 (11) | 0.0091 (10) |
C13 | 0.0492 (14) | 0.0478 (13) | 0.0382 (12) | 0.0093 (10) | 0.0340 (12) | 0.0066 (9) |
C14 | 0.0523 (15) | 0.0427 (13) | 0.0482 (14) | 0.0117 (10) | 0.0328 (13) | 0.0168 (10) |
C15 | 0.0294 (11) | 0.0583 (14) | 0.0267 (11) | −0.0015 (9) | 0.0112 (9) | 0.0122 (9) |
C16 | 0.0571 (15) | 0.0491 (14) | 0.0297 (12) | −0.0087 (11) | 0.0270 (12) | −0.0011 (9) |
O1—C6 | 1.228 (3) | C9—C15 | 1.535 (3) |
N1—C3 | 1.332 (3) | C9—H9A | 0.9600 |
N1—C4 | 1.332 (3) | C9—H9B | 0.9601 |
N1—H1A | 0.9000 | C10—C13 | 1.536 (3) |
N2—C6 | 1.339 (3) | C10—H10A | 0.9602 |
N2—C7 | 1.480 (2) | C10—H10B | 0.9599 |
N2—H2A | 0.9000 | C11—C12 | 1.517 (3) |
C1—C5 | 1.388 (3) | C11—C14 | 1.523 (4) |
C1—C2 | 1.390 (3) | C11—H11A | 0.9599 |
C1—C6 | 1.519 (3) | C12—C13 | 1.520 (3) |
C2—C3 | 1.369 (3) | C12—H12A | 0.9599 |
C2—H2B | 0.9601 | C12—H12B | 0.9600 |
C3—H3A | 0.9599 | C13—C16 | 1.526 (3) |
C4—C5 | 1.379 (3) | C13—H13A | 0.9601 |
C4—H4A | 0.9601 | C14—C15 | 1.520 (4) |
C5—H5A | 0.9599 | C14—H14A | 0.9601 |
C7—C10 | 1.526 (3) | C14—H14B | 0.9600 |
C7—C8 | 1.533 (3) | C15—C16 | 1.518 (3) |
C7—C9 | 1.533 (3) | C15—H15A | 0.9600 |
C8—C11 | 1.535 (3) | C16—H16A | 0.9599 |
C8—H8A | 0.9600 | C16—H16B | 0.9599 |
C8—H8B | 0.9600 | ||
C3—N1—C4 | 122.33 (19) | C7—C10—C13 | 109.73 (17) |
C3—N1—H1A | 118.9 | C7—C10—H10A | 109.9 |
C4—N1—H1A | 118.8 | C13—C10—H10A | 110.0 |
C6—N2—C7 | 124.82 (18) | C7—C10—H10B | 109.6 |
C6—N2—H2A | 117.5 | C13—C10—H10B | 109.4 |
C7—N2—H2A | 117.7 | H10A—C10—H10B | 108.2 |
C5—C1—C2 | 118.42 (19) | C12—C11—C14 | 110.2 (2) |
C5—C1—C6 | 123.72 (18) | C12—C11—C8 | 109.11 (19) |
C2—C1—C6 | 117.73 (19) | C14—C11—C8 | 109.4 (2) |
C3—C2—C1 | 120.0 (2) | C12—C11—H11A | 109.5 |
C3—C2—H2B | 119.9 | C14—C11—H11A | 109.5 |
C1—C2—H2B | 120.1 | C8—C11—H11A | 109.1 |
N1—C3—C2 | 119.8 (2) | C11—C12—C13 | 109.63 (18) |
N1—C3—H3A | 119.8 | C11—C12—H12A | 109.6 |
C2—C3—H3A | 120.3 | C13—C12—H12A | 109.5 |
N1—C4—C5 | 120.0 (2) | C11—C12—H12B | 109.8 |
N1—C4—H4A | 119.9 | C13—C12—H12B | 110.1 |
C5—C4—H4A | 120.1 | H12A—C12—H12B | 108.2 |
C4—C5—C1 | 119.4 (2) | C12—C13—C16 | 110.15 (19) |
C4—C5—H5A | 120.3 | C12—C13—C10 | 109.30 (19) |
C1—C5—H5A | 120.2 | C16—C13—C10 | 108.74 (19) |
O1—C6—N2 | 125.90 (19) | C12—C13—H13A | 109.7 |
O1—C6—C1 | 118.23 (19) | C16—C13—H13A | 109.2 |
N2—C6—C1 | 115.83 (18) | C10—C13—H13A | 109.8 |
N2—C7—C10 | 112.20 (17) | C15—C14—C11 | 109.43 (18) |
N2—C7—C8 | 110.26 (16) | C15—C14—H14A | 110.2 |
C10—C7—C8 | 109.73 (17) | C11—C14—H14A | 109.7 |
N2—C7—C9 | 107.00 (16) | C15—C14—H14B | 109.6 |
C10—C7—C9 | 108.87 (18) | C11—C14—H14B | 109.7 |
C8—C7—C9 | 108.68 (17) | H14A—C14—H14B | 108.2 |
C11—C8—C7 | 109.54 (17) | C16—C15—C14 | 109.7 (2) |
C11—C8—H8A | 110.0 | C16—C15—C9 | 109.31 (19) |
C7—C8—H8A | 109.7 | C14—C15—C9 | 109.5 (2) |
C11—C8—H8B | 109.7 | C16—C15—H15A | 109.4 |
C7—C8—H8B | 109.7 | C14—C15—H15A | 109.5 |
H8A—C8—H8B | 108.2 | C9—C15—H15A | 109.4 |
C15—C9—C7 | 109.69 (17) | C15—C16—C13 | 109.68 (19) |
C15—C9—H9A | 109.6 | C15—C16—H16A | 109.8 |
C7—C9—H9A | 109.6 | C13—C16—H16A | 110.1 |
C15—C9—H9B | 110.1 | C15—C16—H16B | 109.6 |
C7—C9—H9B | 109.6 | C13—C16—H16B | 109.5 |
H9A—C9—H9B | 108.2 | H16A—C16—H16B | 108.1 |
C5—C1—C2—C3 | −1.1 (3) | C8—C7—C9—C15 | −59.8 (2) |
C6—C1—C2—C3 | −177.1 (2) | N2—C7—C10—C13 | −178.48 (17) |
C4—N1—C3—C2 | 0.7 (3) | C8—C7—C10—C13 | 58.6 (2) |
C1—C2—C3—N1 | 0.4 (3) | C9—C7—C10—C13 | −60.2 (2) |
C3—N1—C4—C5 | −1.1 (4) | C7—C8—C11—C12 | 60.1 (2) |
N1—C4—C5—C1 | 0.4 (4) | C7—C8—C11—C14 | −60.6 (2) |
C2—C1—C5—C4 | 0.6 (3) | C14—C11—C12—C13 | 58.8 (2) |
C6—C1—C5—C4 | 176.4 (2) | C8—C11—C12—C13 | −61.3 (2) |
C7—N2—C6—O1 | 4.6 (4) | C11—C12—C13—C16 | −58.4 (2) |
C7—N2—C6—C1 | −173.26 (18) | C11—C12—C13—C10 | 61.0 (2) |
C5—C1—C6—O1 | −151.3 (2) | C7—C10—C13—C12 | −59.5 (2) |
C2—C1—C6—O1 | 24.5 (3) | C7—C10—C13—C16 | 60.8 (2) |
C5—C1—C6—N2 | 26.7 (3) | C12—C11—C14—C15 | −59.6 (2) |
C2—C1—C6—N2 | −157.5 (2) | C8—C11—C14—C15 | 60.4 (3) |
C6—N2—C7—C10 | −66.8 (3) | C11—C14—C15—C16 | 59.8 (2) |
C6—N2—C7—C8 | 55.8 (3) | C11—C14—C15—C9 | −60.2 (3) |
C6—N2—C7—C9 | 173.9 (2) | C7—C9—C15—C16 | −59.9 (2) |
N2—C7—C8—C11 | 177.02 (18) | C7—C9—C15—C14 | 60.2 (3) |
C10—C7—C8—C11 | −58.9 (2) | C14—C15—C16—C13 | −59.6 (2) |
C9—C7—C8—C11 | 60.0 (2) | C9—C15—C16—C13 | 60.6 (2) |
N2—C7—C9—C15 | −178.89 (18) | C12—C13—C16—C15 | 59.0 (2) |
C10—C7—C9—C15 | 59.6 (2) | C10—C13—C16—C15 | −60.8 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···Cl1i | 0.90 | 2.16 | 3.017 (2) | 160 |
N2—H2A···Cl1ii | 0.90 | 2.50 | 3.293 (2) | 147 |
C2—H2B···Cl1iii | 0.96 | 2.79 | 3.535 (3) | 136 |
C3—H3A···Cl1iv | 0.96 | 2.78 | 3.536 (3) | 136 |
C4—H4A···O1ii | 0.96 | 2.35 | 3.203 (3) | 147 |
Symmetry codes: (i) −x+1, −y, −z+1; (ii) x+1, y, z; (iii) −x, −y, −z+1; (iv) x, y, z−1. |
Experimental details
Crystal data | |
Chemical formula | C16H21N2O+·Cl− |
Mr | 292.80 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 7.117 (4), 23.093 (13), 11.241 (5) |
β (°) | 127.56 (2) |
V (Å3) | 1464.5 (13) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.26 |
Crystal size (mm) | 0.20 × 0.20 × 0.20 |
Data collection | |
Diffractometer | Rigaku SCXmini |
Absorption correction | Multi-scan (CrystalClear; Rigaku, 2005) |
Tmin, Tmax | 0.950, 0.950 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 14193, 3377, 2910 |
Rint | 0.042 |
(sin θ/λ)max (Å−1) | 0.651 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.056, 0.139, 1.11 |
No. of reflections | 3377 |
No. of parameters | 202 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.23, −0.22 |
Computer programs: CrystalClear (Rigaku, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL/PC (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···Cl1i | 0.90 | 2.16 | 3.017 (2) | 160.0 |
N2—H2A···Cl1ii | 0.90 | 2.50 | 3.293 (2) | 146.9 |
C2—H2B···Cl1iii | 0.96 | 2.79 | 3.535 (3) | 135.5 |
C3—H3A···Cl1iv | 0.96 | 2.78 | 3.536 (3) | 136.0 |
C4—H4A···O1ii | 0.96 | 2.35 | 3.203 (3) | 147.3 |
Symmetry codes: (i) −x+1, −y, −z+1; (ii) x+1, y, z; (iii) −x, −y, −z+1; (iv) x, y, z−1. |
Acknowledgements
The author is grateful to the starter fund of Southeast University for financial support to buy the X-ray diffractometer.
References
Lees, A. (2005). Drugs Aging, 22, 731–740. Web of Science CrossRef PubMed CAS Google Scholar
Nayyar, A., Monga, V., Malde, A., Coutinho, E. & Jain, R. (2007). Bioorg. Med. Chem. 15, 626–640. Web of Science CrossRef PubMed CAS Google Scholar
Rigaku (2005). CrystalClear. Rigaku Corporation, Tokyo, Japan. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Ye, H.-Y., Chen, L.-Z. & Xiong, R.-G. (2010). Acta Cryst. B66, 387–395. Web of Science CSD CrossRef IUCr Journals Google Scholar
Zhang, W., Ye, H. Y., Cai, H. L., Ge, J. Z., Xiong, R. G. & Huang, S. P. D. (2010). J. Am. Chem. Soc. 132, 7300–7302. Web of Science CSD CrossRef CAS PubMed Google Scholar
This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
The study of amantadine and its derivatives has attracted much attention owing to their multifunction and technological applications in many areas, such as biomedicine (Lees 2005; Nayyar et al.2007). Amantadine can crystallize in different space groups owing to its randomness. As one part of our systematic research on dielectric, ferroelectric, and phase-transition materials (Ye et al. 2010; Zhang et al. 2010), we synthesize the title compound and investigated its dielectric property. In the range of 110 K to its melting point (428–432 K), the dielectric constant increases smoothly as a function of temperature. It means that this compound might not undergo a distinct structural phase transition in the measured temperature range.
The asymmetric unit of the title compound contains one protonated N- (1-adamantyl)isonicotinamide basic ion and one negative chlorine ion (Fig. 1). The torsion angles of C2—C1—C6—O1 and C2—C1—C6—N2 are 24.5 (3) ånd -157.5 (2) °, C5—C1—C6—O1 and C5—C1—C6—N2 are -151.3 (2) ° and 26.7 (3) °. Intermolecular N—H···Cl bonds and weak C—H···Cl and C—H···O contacts link cationic molecules parallel to (1 0 1) (Table 1). The layers are packed by hydrophobic interactions between adamantane units along the b-axis (Fig 2).