organic compounds
2-(Dihydroxymethyl)pyridinium chloride
aCollege of Sciences, Nanjing University of Technology, Nanjing 210009, People's Republic of China, and bState Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, People's Republic of China
*Correspondence e-mail: whuang@nju.edu.cn,
In the title compound, C6H8NO2+·Cl−, intermolecular O—H⋯Cl and N—H⋯Cl hydrogen bonds are observed in which each chloride anion links three adjacent cations into a hydrogen-bond network.
Experimental
Crystal data
|
Refinement
|
Data collection: SMART (Bruker, 2000); cell SAINT (Bruker, 2000); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536810006604/bg2326sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536810006604/bg2326Isup2.hkl
The H1A atom bonded with atom O1 was located in the difference synthesis and were refined isotropically. The other H atoms were placed in geometrically idealized positions and refined as riding, with C—H = 0.93–0.98 Å, N—H = 0.86 Å and O—H = 0.96 Å, Uiso(H) = 1.2Ueq(C), Uiso(H) = 1.2Ueq(N) and Uiso(H) = 1.5Ueq(O).
Data collection: SMART (Bruker, 2000); cell
SAINT (Bruker, 2000); data reduction: SAINT (Bruker, 2000); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C6H8NO2+·Cl− | F(000) = 336 |
Mr = 161.58 | Dx = 1.455 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 776 reflections |
a = 4.6879 (7) Å | θ = 2.4–21.0° |
b = 15.557 (2) Å | µ = 0.45 mm−1 |
c = 10.1199 (14) Å | T = 291 K |
β = 91.181 (2)° | Block, colourless |
V = 737.88 (18) Å3 | 0.12 × 0.12 × 0.10 mm |
Z = 4 |
Bruker SMART 1K CCD area-detector diffractometer | 1303 independent reflections |
Radiation source: fine-focus sealed tube | 842 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.058 |
ϕ and ω scans | θmax = 25.0°, θmin = 2.4° |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | h = −5→5 |
Tmin = 0.948, Tmax = 0.956 | k = −12→18 |
3676 measured reflections | l = −12→10 |
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)] = 0.035 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.075 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.89 | w = 1/[σ2(Fo2) + (0.0272P)2] where P = (Fo2 + 2Fc2)/3 |
1303 reflections | (Δ/σ)max = 0.001 |
99 parameters | Δρmax = 0.22 e Å−3 |
2 restraints | Δρmin = −0.23 e Å−3 |
C6H8NO2+·Cl− | V = 737.88 (18) Å3 |
Mr = 161.58 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 4.6879 (7) Å | µ = 0.45 mm−1 |
b = 15.557 (2) Å | T = 291 K |
c = 10.1199 (14) Å | 0.12 × 0.12 × 0.10 mm |
β = 91.181 (2)° |
Bruker SMART 1K CCD area-detector diffractometer | 1303 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | 842 reflections with I > 2σ(I) |
Tmin = 0.948, Tmax = 0.956 | Rint = 0.058 |
3676 measured reflections |
R[F2 > 2σ(F2)] = 0.035 | 2 restraints |
wR(F2) = 0.075 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.89 | Δρmax = 0.22 e Å−3 |
1303 reflections | Δρmin = −0.23 e Å−3 |
99 parameters |
Experimental. The structure was solved by direct methods (Bruker, 2000) and successive difference Fourier syntheses. |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 | ||
C1 | 0.0342 (4) | 0.62701 (15) | 0.8930 (2) | 0.0395 (6) | |
C2 | 0.1167 (5) | 0.54999 (16) | 0.8429 (2) | 0.0469 (6) | |
H2 | 0.2515 | 0.5168 | 0.8883 | 0.056* | |
C3 | 0.0002 (5) | 0.52104 (16) | 0.7246 (2) | 0.0544 (7) | |
H3 | 0.0549 | 0.4681 | 0.6906 | 0.065* | |
C4 | −0.1975 (5) | 0.57099 (17) | 0.6572 (2) | 0.0553 (7) | |
H4 | −0.2792 | 0.5519 | 0.5780 | 0.066* | |
C5 | −0.2716 (5) | 0.64860 (17) | 0.7082 (2) | 0.0504 (7) | |
H5 | −0.4015 | 0.6836 | 0.6630 | 0.060* | |
C6 | 0.1322 (5) | 0.66291 (15) | 1.0257 (2) | 0.0448 (6) | |
H6 | 0.0102 | 0.6382 | 1.0935 | 0.054* | |
Cl1 | 0.51126 (13) | 0.65293 (4) | 0.34503 (6) | 0.0572 (2) | |
H1A | 0.442 (6) | 0.6405 (18) | 1.1316 (11) | 0.090 (11)* | |
H2A | 0.211 (5) | 0.7784 (16) | 0.978 (2) | 0.080 (11)* | |
N1 | −0.1571 (4) | 0.67433 (12) | 0.82335 (17) | 0.0424 (5) | |
H1 | −0.2077 | 0.7233 | 0.8546 | 0.051* | |
O1 | 0.4092 (3) | 0.63308 (12) | 1.04924 (17) | 0.0573 (5) | |
O2 | 0.1066 (4) | 0.75152 (12) | 1.03217 (17) | 0.0567 (5) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0371 (13) | 0.0428 (15) | 0.0389 (13) | −0.0011 (11) | 0.0022 (11) | 0.0061 (11) |
C2 | 0.0486 (14) | 0.0414 (15) | 0.0508 (15) | 0.0054 (12) | 0.0005 (12) | 0.0027 (12) |
C3 | 0.0671 (17) | 0.0424 (16) | 0.0537 (17) | −0.0014 (14) | 0.0030 (14) | −0.0052 (13) |
C4 | 0.0661 (18) | 0.0557 (18) | 0.0439 (15) | −0.0126 (15) | −0.0050 (13) | −0.0025 (13) |
C5 | 0.0529 (16) | 0.0540 (17) | 0.0441 (15) | −0.0023 (13) | −0.0062 (12) | 0.0083 (13) |
C6 | 0.0431 (14) | 0.0467 (16) | 0.0446 (14) | 0.0032 (13) | 0.0011 (11) | 0.0031 (12) |
Cl1 | 0.0683 (5) | 0.0469 (4) | 0.0559 (4) | −0.0043 (3) | −0.0107 (3) | −0.0036 (3) |
N1 | 0.0464 (12) | 0.0389 (12) | 0.0418 (12) | 0.0010 (10) | 0.0008 (9) | 0.0013 (9) |
O1 | 0.0480 (11) | 0.0753 (14) | 0.0483 (12) | 0.0133 (9) | −0.0086 (9) | −0.0063 (9) |
O2 | 0.0670 (13) | 0.0478 (12) | 0.0551 (12) | 0.0021 (10) | −0.0013 (10) | −0.0084 (9) |
C1—N1 | 1.348 (3) | C5—N1 | 1.334 (3) |
C1—C2 | 1.360 (3) | C5—H5 | 0.9300 |
C1—C6 | 1.518 (3) | C6—O2 | 1.385 (3) |
C2—C3 | 1.381 (3) | C6—O1 | 1.395 (3) |
C2—H2 | 0.9300 | C6—H6 | 0.9800 |
C3—C4 | 1.379 (3) | N1—H1 | 0.8600 |
C3—H3 | 0.9300 | O1—H1A | 0.852 (10) |
C4—C5 | 1.361 (3) | O2—H2A | 0.853 (10) |
C4—H4 | 0.9300 | ||
N1—C1—C2 | 118.5 (2) | N1—C5—H5 | 120.1 |
N1—C1—C6 | 116.6 (2) | C4—C5—H5 | 120.1 |
C2—C1—C6 | 124.8 (2) | O2—C6—O1 | 113.84 (19) |
C1—C2—C3 | 120.0 (2) | O2—C6—C1 | 112.52 (18) |
C1—C2—H2 | 120.0 | O1—C6—C1 | 106.99 (18) |
C3—C2—H2 | 120.0 | O2—C6—H6 | 107.7 |
C4—C3—C2 | 119.6 (2) | O1—C6—H6 | 107.7 |
C4—C3—H3 | 120.2 | C1—C6—H6 | 107.7 |
C2—C3—H3 | 120.2 | C5—N1—C1 | 123.0 (2) |
C5—C4—C3 | 119.1 (2) | C5—N1—H1 | 118.5 |
C5—C4—H4 | 120.4 | C1—N1—H1 | 118.5 |
C3—C4—H4 | 120.4 | C6—O1—H1A | 105.8 (19) |
N1—C5—C4 | 119.7 (2) | C6—O2—H2A | 114.0 (19) |
N1—C1—C2—C3 | −1.4 (3) | C2—C1—C6—O2 | 157.6 (2) |
C6—C1—C2—C3 | 175.9 (2) | N1—C1—C6—O1 | −150.91 (18) |
C1—C2—C3—C4 | 0.6 (4) | C2—C1—C6—O1 | 31.8 (3) |
C2—C3—C4—C5 | 0.8 (4) | C4—C5—N1—C1 | 0.7 (3) |
C3—C4—C5—N1 | −1.4 (4) | C2—C1—N1—C5 | 0.7 (3) |
N1—C1—C6—O2 | −25.2 (3) | C6—C1—N1—C5 | −176.7 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2A···Cl1i | 0.85 (1) | 2.24 (1) | 3.089 (2) | 176 (2) |
O1—H1A···Cl1ii | 0.85 (1) | 2.19 (1) | 3.0374 (18) | 177 (3) |
N1—H1···Cl1iii | 0.86 | 2.33 | 3.115 (2) | 151 |
Symmetry codes: (i) x, −y+3/2, z+1/2; (ii) x, y, z+1; (iii) x−1, −y+3/2, z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C6H8NO2+·Cl− |
Mr | 161.58 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 291 |
a, b, c (Å) | 4.6879 (7), 15.557 (2), 10.1199 (14) |
β (°) | 91.181 (2) |
V (Å3) | 737.88 (18) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.45 |
Crystal size (mm) | 0.12 × 0.12 × 0.10 |
Data collection | |
Diffractometer | Bruker SMART 1K CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2000) |
Tmin, Tmax | 0.948, 0.956 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 3676, 1303, 842 |
Rint | 0.058 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.035, 0.075, 0.89 |
No. of reflections | 1303 |
No. of parameters | 99 |
No. of restraints | 2 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.22, −0.23 |
Computer programs: SMART (Bruker, 2000), SAINT (Bruker, 2000), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2A···Cl1i | 0.853 (10) | 2.238 (10) | 3.089 (2) | 176 (2) |
O1—H1A···Cl1ii | 0.852 (10) | 2.186 (10) | 3.0374 (18) | 177 (3) |
N1—H1···Cl1iii | 0.86 | 2.33 | 3.115 (2) | 151.1 |
Symmetry codes: (i) x, −y+3/2, z+1/2; (ii) x, y, z+1; (iii) x−1, −y+3/2, z+1/2. |
Acknowledgements
WH acknowledges the National Natural Science Foundation of China (No. 20871065) and the Jiangsu Province Department of Science and Technology (No. BK2009226) for financial aid.
References
Bruker (2000). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Mantero, D. G., Altaf, M., Neels, A. & Stoeckli-Evans, H. (2006). Acta Cryst. E62, o5204–o5206. Web of Science CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals 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 crystal structure of pyridin-4-ylmethanediol, namely the hydrated form of isonicotinaldehyde has been previously reported (Mantero et al., 2006). In this paper, we report the X-ray single-crystal structure of pyridin-2-ylmethanediol-1-ium chloride (I).
The molecular structure of (I) is illustrated in Fig. 1. The two hydroxyl groups lie at the same side of the aromatic ring. In the crystal packing, intermolecular O—H···Cl and N—H···Cl hydrogen bonding interactions are observed where every chloride anion links three adjacent molecules into a hydrogen-bond sustained network (Fig. 2).