organic compounds
Pyridine-2-carboximidamidate chloride monohydrate
aExperiment Center, Eastern Liaoning University, No. 325 Wenhua Road, Yuanbao District, Dandong City, Liaoning Province 118003, People's Republic of China, and bCollege of Chemical Engineering & Materials, Eastern Liaoning University, No. 325 Wenhua Road, Yuanbao District, Dandong City, Liaoning Province 118003, People's Republic of China
*Correspondence e-mail: berylliu8090@sina.com
The title compound, C6H8N3+·Cl−·H2O, crystallizes with three formula units in the The cations are non-planar with the –C(NH2)2 groups twisted out of the ring planes. Each pyridine carboximidamidate cation is linked to another cation through N—H⋯N hydrogen bonds, to chloride ions by N—H⋯Cl hydrogen bonds, and to water molecules by N—H⋯O hydrogen bonds. Water molecules and chloride ions are also linked together via O—H⋯Cl hydrogen bonds. In the crystal, all these intermolecular interactions result in a three-dimensional network.
Related literature
For related structures, see: Guo et al. (2005); Fan et al. (2009); Góker et al. (2005); Walther et al. (2006).
Experimental
Crystal data
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Refinement
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Data collection: RAPID-AUTO (Rigaku, 1998); cell RAPID-AUTO; data reduction: RAPID-AUTO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg, 1999) and SHELXP97 (Sheldrick, 2008); software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536810046106/zq2070sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810046106/zq2070Isup2.hkl
To a solution of sodium methoxide (5.15 mmol) in methanol (50 mL) was added 2-cyanopyridine (5.2 g, 4.99 mmol). The mixture was stirred at room temperature for 4 h. Then ammonium chloride (2.9 g, 5.42 mmol) was slowly added to the resulting solution and the mixture was stirred at room temperature for 68 h. The resulting suspension was filtered and the solvent was removed from the filtrate under reduced pressure. Purification by wash with ethyl ether gave 2-amidinopyridine hydrochloride (5.62 g, 92%) as an off-white solid. Colorless crystals were formed after several days.
The H atoms were initially found in a difference Fourier map and their coordinates were refined freely.
The pyridinecarboximidamidate derivatives have attracted a great attention due to their very potent antibacterial activities, interesting biological properties and applications in coordination chemistry, but a few samples have been reported (Guo et al., 2005; Góker et al., 2005; Walther et al., 2006; Fan et al., 2009). Here we report the structure of title compound C6H8N3+.Cl-.H2O. The title compound is an organic salt and crystallizes with three formula units in the
(Fig. 1). The molecules are nonplanar with the C(NH2)2 groups twisted out of the ring planes. The bond lengths and angles exhibit normal values and are comparable with those in the related structures (Guo et al., 2005; Fan et al., 2009).In the
pyridine carboximidamidate cations adopt three different connecting types (Fig. 2). Each pyridine carboximidamidate cation is linked to another cation through N—H···N hydrogen bonds, to chloride ions by N—H···Cl hydrogen bonds, and to water molecules by N—H···O hydrogen bonds. Water molecules and chloride ions are also linked together via O—H···Cl hydrogen bonds (Table 1). In the all these intermolecular interactions result in a three-dimensional network (Fig. 3).For related structures, see: Guo et al. (2005); Fan et al. (2009); Góker et al. (2005); Walther et al. (2006).
Data collection: RAPID-AUTO (Rigaku, 1998); cell
RAPID-AUTO (Rigaku, 1998); data reduction: RAPID-AUTO (Rigaku, 1998); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg, 1999) and SHELXP97 (Sheldrick, 2008); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).Fig. 1. The molecular structure of the title compound showing 30% probability displacement ellipsoids for non-H atoms. | |
Fig. 2. View of the hydrogen bonding interactions in the title compound. | |
Fig. 3. Crystal packing of the title compound. |
C6H8N3+·Cl−·H2O | Z = 6 |
Mr = 175.62 | F(000) = 552 |
Triclinic, P1 | Dx = 1.340 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 7.2570 (15) Å | Cell parameters from 9445 reflections |
b = 11.146 (2) Å | θ = 3.0–27.4° |
c = 16.862 (3) Å | µ = 0.39 mm−1 |
α = 79.24 (3)° | T = 293 K |
β = 82.14 (3)° | Block, colourless |
γ = 78.34 (3)° | 0.25 × 0.24 × 0.22 mm |
V = 1305.3 (5) Å3 |
Rigaku R-AXIS RAPID diffractometer | 5919 independent reflections |
Radiation source: fine-focus sealed tube | 4550 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.024 |
Detector resolution: 10 pixels mm-1 | θmax = 27.5°, θmin = 3.0° |
ω scans | h = −9→9 |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | k = −14→14 |
Tmin = 0.909, Tmax = 0.918 | l = −21→21 |
12872 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)] = 0.035 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.117 | All H-atom parameters refined |
S = 1.11 | w = 1/[σ2(Fo2) + (0.0684P)2] where P = (Fo2 + 2Fc2)/3 |
5919 reflections | (Δ/σ)max = 0.001 |
418 parameters | Δρmax = 0.23 e Å−3 |
0 restraints | Δρmin = −0.26 e Å−3 |
C6H8N3+·Cl−·H2O | γ = 78.34 (3)° |
Mr = 175.62 | V = 1305.3 (5) Å3 |
Triclinic, P1 | Z = 6 |
a = 7.2570 (15) Å | Mo Kα radiation |
b = 11.146 (2) Å | µ = 0.39 mm−1 |
c = 16.862 (3) Å | T = 293 K |
α = 79.24 (3)° | 0.25 × 0.24 × 0.22 mm |
β = 82.14 (3)° |
Rigaku R-AXIS RAPID diffractometer | 5919 independent reflections |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | 4550 reflections with I > 2σ(I) |
Tmin = 0.909, Tmax = 0.918 | Rint = 0.024 |
12872 measured reflections |
R[F2 > 2σ(F2)] = 0.035 | 0 restraints |
wR(F2) = 0.117 | All H-atom parameters refined |
S = 1.11 | Δρmax = 0.23 e Å−3 |
5919 reflections | Δρmin = −0.26 e Å−3 |
418 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 | 0.17320 (7) | 0.30230 (4) | 0.10288 (2) | 0.04346 (13) | |
O1 | 0.7888 (3) | 0.60439 (14) | 0.40146 (10) | 0.0647 (4) | |
H1B | 0.690 (4) | 0.647 (3) | 0.4141 (15) | 0.073 (8)* | |
H10 | 0.821 (5) | 0.635 (3) | 0.344 (2) | 0.120 (11)* | |
N1 | 0.3062 (2) | 0.86483 (13) | −0.07194 (8) | 0.0432 (3) | |
C1 | 0.3052 (3) | 0.98536 (18) | −0.07462 (13) | 0.0540 (5) | |
H1 | 0.336 (4) | 1.031 (2) | −0.1243 (15) | 0.078 (7)* | |
Cl2 | 0.13596 (7) | 0.30724 (4) | −0.21061 (3) | 0.04888 (14) | |
O2 | 0.3482 (2) | 0.37193 (13) | −0.07519 (9) | 0.0530 (4) | |
H0B | 0.305 (4) | 0.345 (2) | −0.0273 (16) | 0.077 (8)* | |
H0A | 0.297 (4) | 0.351 (2) | −0.1073 (17) | 0.075 (8)* | |
N2 | 0.1754 (2) | 0.60101 (14) | 0.06004 (10) | 0.0429 (3) | |
H2A | 0.111 (4) | 0.629 (2) | 0.1009 (15) | 0.071 (7)* | |
H2B | 0.180 (3) | 0.513 (2) | 0.0663 (12) | 0.053 (6)* | |
C2 | 0.2604 (3) | 1.04352 (17) | −0.00802 (14) | 0.0561 (5) | |
H2 | 0.261 (3) | 1.131 (2) | −0.0152 (12) | 0.055 (6)* | |
Cl3 | 0.43514 (7) | 0.80296 (4) | 0.45146 (3) | 0.05099 (14) | |
O3 | 0.4557 (3) | 0.86529 (14) | 0.26022 (10) | 0.0627 (4) | |
H03B | 0.561 (5) | 0.826 (3) | 0.2445 (19) | 0.102 (11)* | |
H03A | 0.448 (5) | 0.831 (3) | 0.316 (2) | 0.121 (12)* | |
N3 | 0.3540 (2) | 0.61884 (14) | −0.06282 (9) | 0.0426 (3) | |
H3B | 0.410 (3) | 0.669 (2) | −0.1007 (13) | 0.054 (6)* | |
H3A | 0.350 (3) | 0.544 (2) | −0.0696 (12) | 0.051 (5)* | |
C3 | 0.2174 (3) | 0.97567 (18) | 0.06587 (13) | 0.0564 (5) | |
H3 | 0.189 (3) | 1.014 (2) | 0.1127 (14) | 0.070 (7)* | |
C4 | 0.2181 (3) | 0.85015 (18) | 0.07107 (11) | 0.0478 (4) | |
H4 | 0.192 (3) | 0.800 (2) | 0.1214 (14) | 0.067 (7)* | |
C5 | 0.2600 (2) | 0.80020 (14) | 0.00027 (9) | 0.0343 (3) | |
C6 | 0.2627 (2) | 0.66679 (14) | −0.00077 (9) | 0.0338 (3) | |
N11 | 0.4303 (2) | 0.37190 (13) | 0.25233 (9) | 0.0428 (3) | |
C11 | 0.4055 (3) | 0.49449 (19) | 0.24780 (13) | 0.0540 (5) | |
H11 | 0.446 (3) | 0.542 (2) | 0.2001 (13) | 0.058 (6)* | |
N12 | 0.4363 (3) | 0.09814 (16) | 0.39452 (10) | 0.0502 (4) | |
H12B | 0.440 (3) | 0.014 (2) | 0.4040 (13) | 0.055 (6)* | |
H12A | 0.456 (3) | 0.128 (2) | 0.4371 (15) | 0.065 (7)* | |
C12 | 0.3223 (3) | 0.55573 (19) | 0.31194 (14) | 0.0604 (5) | |
H12 | 0.311 (4) | 0.648 (2) | 0.3024 (15) | 0.081 (8)* | |
N13 | 0.3872 (2) | 0.12940 (15) | 0.25963 (10) | 0.0447 (3) | |
H13B | 0.413 (3) | 0.045 (2) | 0.2600 (13) | 0.059 (6)* | |
H13A | 0.360 (3) | 0.187 (2) | 0.2153 (13) | 0.060 (6)* | |
C13 | 0.2613 (3) | 0.4879 (2) | 0.38308 (14) | 0.0599 (5) | |
H13 | 0.207 (4) | 0.528 (2) | 0.4224 (16) | 0.078 (8)* | |
C14 | 0.2851 (3) | 0.36072 (18) | 0.38966 (12) | 0.0477 (4) | |
H14 | 0.241 (3) | 0.3113 (19) | 0.4350 (12) | 0.048 (5)* | |
C15 | 0.3718 (2) | 0.30783 (15) | 0.32274 (10) | 0.0368 (3) | |
C16 | 0.4002 (2) | 0.17137 (16) | 0.32577 (10) | 0.0384 (4) | |
N21 | −0.0617 (2) | 0.10605 (13) | 0.39607 (8) | 0.0441 (3) | |
C21 | −0.0357 (3) | −0.01675 (19) | 0.40054 (13) | 0.0563 (5) | |
H21 | −0.005 (3) | −0.059 (2) | 0.4527 (13) | 0.062 (6)* | |
N22 | −0.0909 (2) | 0.38620 (15) | 0.25737 (9) | 0.0446 (3) | |
H22B | −0.032 (3) | 0.359 (2) | 0.2128 (15) | 0.066 (7)* | |
H22A | −0.111 (3) | 0.470 (2) | 0.2526 (14) | 0.069 (7)* | |
C22 | −0.0480 (3) | −0.07293 (19) | 0.33556 (13) | 0.0559 (5) | |
H22 | −0.030 (3) | −0.160 (2) | 0.3423 (13) | 0.061 (6)* | |
N23 | −0.2026 (2) | 0.35240 (16) | 0.39229 (10) | 0.0453 (4) | |
H23B | −0.215 (3) | 0.430 (2) | 0.3963 (13) | 0.058 (6)* | |
H23A | −0.232 (3) | 0.299 (2) | 0.4342 (14) | 0.057 (6)* | |
C23 | −0.0891 (3) | −0.00047 (19) | 0.26314 (12) | 0.0526 (5) | |
H23 | −0.103 (4) | −0.035 (2) | 0.2163 (15) | 0.077 (7)* | |
C24 | −0.1160 (3) | 0.12748 (18) | 0.25641 (10) | 0.0431 (4) | |
H24 | −0.146 (3) | 0.1764 (18) | 0.2077 (12) | 0.048 (5)* | |
C25 | −0.1009 (2) | 0.17539 (15) | 0.32452 (9) | 0.0338 (3) | |
C26 | −0.1327 (2) | 0.31196 (15) | 0.32427 (9) | 0.0352 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0579 (3) | 0.0378 (2) | 0.0333 (2) | −0.01169 (18) | 0.00298 (17) | −0.00477 (16) |
O1 | 0.0845 (12) | 0.0469 (8) | 0.0521 (9) | 0.0040 (8) | 0.0066 (8) | −0.0091 (7) |
N1 | 0.0551 (9) | 0.0372 (8) | 0.0361 (7) | −0.0117 (7) | −0.0026 (6) | −0.0009 (6) |
C1 | 0.0739 (14) | 0.0379 (10) | 0.0502 (11) | −0.0197 (9) | −0.0090 (10) | 0.0050 (9) |
Cl2 | 0.0640 (3) | 0.0430 (2) | 0.0393 (2) | −0.0127 (2) | 0.00567 (19) | −0.01046 (18) |
O2 | 0.0740 (10) | 0.0492 (8) | 0.0412 (7) | −0.0272 (7) | 0.0026 (7) | −0.0098 (6) |
N2 | 0.0535 (9) | 0.0310 (7) | 0.0428 (8) | −0.0122 (7) | 0.0073 (7) | −0.0061 (6) |
C2 | 0.0651 (13) | 0.0295 (9) | 0.0749 (14) | −0.0119 (8) | −0.0056 (11) | −0.0094 (9) |
Cl3 | 0.0642 (3) | 0.0439 (2) | 0.0370 (2) | −0.0035 (2) | 0.00486 (19) | −0.00088 (18) |
O3 | 0.0851 (12) | 0.0472 (8) | 0.0474 (8) | −0.0042 (8) | 0.0026 (8) | −0.0020 (7) |
N3 | 0.0529 (9) | 0.0337 (8) | 0.0407 (8) | −0.0116 (7) | 0.0084 (7) | −0.0102 (7) |
C3 | 0.0654 (13) | 0.0476 (11) | 0.0625 (12) | −0.0181 (10) | 0.0094 (10) | −0.0280 (10) |
C4 | 0.0608 (12) | 0.0435 (10) | 0.0397 (9) | −0.0164 (9) | 0.0071 (8) | −0.0098 (8) |
C5 | 0.0341 (8) | 0.0301 (8) | 0.0375 (8) | −0.0047 (6) | −0.0016 (6) | −0.0056 (6) |
C6 | 0.0351 (8) | 0.0304 (8) | 0.0346 (8) | −0.0056 (6) | −0.0029 (6) | −0.0032 (6) |
N11 | 0.0463 (8) | 0.0403 (8) | 0.0413 (8) | −0.0133 (7) | −0.0022 (6) | −0.0011 (6) |
C11 | 0.0637 (13) | 0.0431 (10) | 0.0535 (11) | −0.0168 (9) | −0.0050 (10) | 0.0036 (9) |
N12 | 0.0662 (11) | 0.0378 (9) | 0.0454 (9) | −0.0115 (8) | −0.0133 (8) | 0.0036 (7) |
C12 | 0.0682 (14) | 0.0369 (10) | 0.0749 (15) | −0.0044 (9) | −0.0132 (11) | −0.0077 (10) |
N13 | 0.0533 (9) | 0.0357 (8) | 0.0439 (8) | −0.0081 (7) | −0.0068 (7) | −0.0020 (7) |
C13 | 0.0672 (14) | 0.0520 (12) | 0.0582 (12) | 0.0050 (10) | −0.0078 (11) | −0.0191 (10) |
C14 | 0.0487 (10) | 0.0482 (10) | 0.0398 (9) | −0.0024 (8) | −0.0011 (8) | −0.0003 (8) |
C15 | 0.0332 (8) | 0.0374 (9) | 0.0389 (8) | −0.0072 (7) | −0.0064 (7) | −0.0013 (7) |
C16 | 0.0322 (8) | 0.0416 (9) | 0.0394 (8) | −0.0090 (7) | −0.0025 (7) | 0.0000 (7) |
N21 | 0.0555 (9) | 0.0392 (8) | 0.0350 (7) | −0.0006 (7) | −0.0085 (6) | −0.0053 (6) |
C21 | 0.0746 (14) | 0.0421 (10) | 0.0474 (10) | 0.0028 (9) | −0.0149 (10) | −0.0041 (8) |
N22 | 0.0531 (9) | 0.0370 (8) | 0.0395 (8) | −0.0089 (7) | 0.0081 (7) | −0.0044 (7) |
C22 | 0.0681 (14) | 0.0391 (10) | 0.0615 (12) | −0.0083 (9) | −0.0054 (10) | −0.0137 (9) |
N23 | 0.0547 (10) | 0.0402 (9) | 0.0387 (8) | −0.0099 (7) | 0.0087 (7) | −0.0088 (7) |
C23 | 0.0634 (13) | 0.0548 (11) | 0.0470 (10) | −0.0201 (10) | −0.0012 (9) | −0.0202 (9) |
C24 | 0.0499 (10) | 0.0495 (10) | 0.0328 (8) | −0.0184 (8) | −0.0036 (7) | −0.0046 (7) |
C25 | 0.0287 (7) | 0.0381 (8) | 0.0337 (7) | −0.0066 (6) | 0.0006 (6) | −0.0060 (6) |
C26 | 0.0309 (8) | 0.0383 (9) | 0.0355 (8) | −0.0074 (7) | 0.0001 (6) | −0.0053 (7) |
O1—H1B | 0.80 (3) | N12—H12A | 0.89 (2) |
O1—H10 | 0.98 (4) | C12—C13 | 1.363 (3) |
N1—C5 | 1.331 (2) | C12—H12 | 1.00 (3) |
N1—C1 | 1.334 (2) | N13—C16 | 1.309 (2) |
C1—C2 | 1.369 (3) | N13—H13B | 0.92 (2) |
C1—H1 | 0.92 (2) | N13—H13A | 0.91 (2) |
O2—H0B | 0.85 (3) | C13—C14 | 1.378 (3) |
O2—H0A | 0.79 (3) | C13—H13 | 0.87 (3) |
N2—C6 | 1.311 (2) | C14—C15 | 1.386 (3) |
N2—H2A | 0.85 (3) | C14—H14 | 0.91 (2) |
N2—H2B | 0.96 (2) | C15—C16 | 1.485 (2) |
C2—C3 | 1.364 (3) | N21—C21 | 1.333 (2) |
C2—H2 | 0.96 (2) | N21—C25 | 1.338 (2) |
O3—H03B | 0.84 (4) | C21—C22 | 1.381 (3) |
O3—H03A | 0.94 (4) | C21—H21 | 0.95 (2) |
N3—C6 | 1.302 (2) | N22—C26 | 1.307 (2) |
N3—H3B | 0.88 (2) | N22—H22B | 0.89 (3) |
N3—H3A | 0.87 (2) | N22—H22A | 0.91 (2) |
C3—C4 | 1.384 (3) | C22—C23 | 1.366 (3) |
C3—H3 | 0.95 (2) | C22—H22 | 0.94 (2) |
C4—C5 | 1.381 (2) | N23—C26 | 1.311 (2) |
C4—H4 | 0.94 (2) | N23—H23B | 0.87 (2) |
C5—C6 | 1.486 (2) | N23—H23A | 0.87 (2) |
N11—C15 | 1.330 (2) | C23—C24 | 1.385 (3) |
N11—C11 | 1.331 (2) | C23—H23 | 0.97 (2) |
C11—C12 | 1.390 (3) | C24—C25 | 1.380 (2) |
C11—H11 | 0.92 (2) | C24—H24 | 0.924 (19) |
N12—C16 | 1.312 (2) | C25—C26 | 1.492 (2) |
N12—H12B | 0.91 (2) | ||
H1B—O1—H10 | 106 (3) | C16—N13—H13A | 116.6 (13) |
C5—N1—C1 | 116.70 (15) | H13B—N13—H13A | 124.4 (19) |
N1—C1—C2 | 123.59 (18) | C12—C13—C14 | 119.3 (2) |
N1—C1—H1 | 117.3 (16) | C12—C13—H13 | 117.7 (17) |
C2—C1—H1 | 119.1 (16) | C14—C13—H13 | 123.0 (17) |
H0B—O2—H0A | 111 (2) | C13—C14—C15 | 117.69 (19) |
C6—N2—H2A | 125.2 (16) | C13—C14—H14 | 122.7 (13) |
C6—N2—H2B | 124.9 (13) | C15—C14—H14 | 119.5 (12) |
H2A—N2—H2B | 110 (2) | N11—C15—C14 | 124.30 (16) |
C3—C2—C1 | 119.11 (17) | N11—C15—C16 | 115.39 (15) |
C3—C2—H2 | 122.4 (12) | C14—C15—C16 | 120.29 (16) |
C1—C2—H2 | 118.5 (12) | N13—C16—N12 | 122.82 (17) |
H03B—O3—H03A | 100 (3) | N13—C16—C15 | 118.41 (15) |
C6—N3—H3B | 116.3 (14) | N12—C16—C15 | 118.77 (16) |
C6—N3—H3A | 122.4 (14) | C21—N21—C25 | 116.99 (15) |
H3B—N3—H3A | 120.9 (19) | N21—C21—C22 | 122.95 (18) |
C2—C3—C4 | 118.91 (18) | N21—C21—H21 | 111.6 (13) |
C2—C3—H3 | 120.1 (14) | C22—C21—H21 | 125.4 (13) |
C4—C3—H3 | 121.0 (14) | C26—N22—H22B | 123.0 (15) |
C5—C4—C3 | 117.91 (18) | C26—N22—H22A | 124.0 (15) |
C5—C4—H4 | 121.0 (13) | H22B—N22—H22A | 113 (2) |
C3—C4—H4 | 121.1 (13) | C23—C22—C21 | 119.16 (18) |
N1—C5—C4 | 123.74 (15) | C23—C22—H22 | 121.3 (13) |
N1—C5—C6 | 114.14 (13) | C21—C22—H22 | 119.5 (13) |
C4—C5—C6 | 122.09 (15) | C26—N23—H23B | 121.2 (15) |
N3—C6—N2 | 122.05 (15) | C26—N23—H23A | 118.2 (14) |
N3—C6—C5 | 118.14 (15) | H23B—N23—H23A | 121 (2) |
N2—C6—C5 | 119.81 (15) | C22—C23—C24 | 119.30 (17) |
C15—N11—C11 | 116.63 (16) | C22—C23—H23 | 122.4 (15) |
N11—C11—C12 | 123.22 (19) | C24—C23—H23 | 118.3 (15) |
N11—C11—H11 | 119.1 (14) | C25—C24—C23 | 117.51 (17) |
C12—C11—H11 | 117.7 (14) | C25—C24—H24 | 123.3 (12) |
C16—N12—H12B | 124.8 (13) | C23—C24—H24 | 119.2 (12) |
C16—N12—H12A | 121.0 (15) | N21—C25—C24 | 124.10 (15) |
H12B—N12—H12A | 114.1 (19) | N21—C25—C26 | 114.20 (14) |
C13—C12—C11 | 118.88 (19) | C24—C25—C26 | 121.68 (15) |
C13—C12—H12 | 124.1 (15) | N22—C26—N23 | 122.63 (16) |
C11—C12—H12 | 117.0 (15) | N22—C26—C25 | 119.59 (15) |
C16—N13—H13B | 119.0 (13) | N23—C26—C25 | 117.78 (15) |
D—H···A | D—H | H···A | D···A | D—H···A |
N23—H23B···O1i | 0.87 (2) | 1.97 (2) | 2.829 (2) | 173 (2) |
N22—H22B···Cl1 | 0.89 (3) | 2.31 (3) | 3.187 (2) | 169 (2) |
N12—H12B···Cl3ii | 0.91 (2) | 2.35 (2) | 3.2522 (19) | 170.2 (18) |
O1—H1B···Cl3 | 0.80 (3) | 2.37 (3) | 3.163 (2) | 169 (2) |
N2—H2A···Cl2iii | 0.85 (3) | 2.49 (3) | 3.326 (2) | 167 (2) |
O1—H10···Cl2iv | 0.98 (4) | 2.22 (4) | 3.1902 (19) | 173 (3) |
N3—H3A···O2 | 0.87 (2) | 1.94 (2) | 2.808 (2) | 174.9 (19) |
N2—H2B···Cl1 | 0.96 (2) | 2.32 (2) | 3.2754 (17) | 170.9 (17) |
N12—H12A···Cl3v | 0.89 (2) | 2.43 (2) | 3.313 (2) | 171 (2) |
N23—H23A···Cl3vi | 0.87 (2) | 2.50 (2) | 3.324 (2) | 158 (2) |
N13—H13B···O3ii | 0.92 (2) | 1.97 (2) | 2.883 (2) | 178 (2) |
N22—H22A···Cl2iii | 0.91 (2) | 2.43 (3) | 3.3194 (18) | 168 (2) |
N13—H13A···Cl1 | 0.91 (2) | 2.48 (2) | 3.335 (2) | 156.9 (19) |
O3—H03B···Cl2iv | 0.84 (4) | 2.45 (4) | 3.286 (2) | 174 (3) |
O2—H0B···Cl1 | 0.85 (3) | 2.28 (3) | 3.1171 (18) | 172 (2) |
O2—H0A···Cl2 | 0.79 (3) | 2.40 (3) | 3.1833 (18) | 175 (3) |
O3—H03A···Cl3 | 0.94 (4) | 2.25 (4) | 3.1586 (18) | 164 (3) |
Symmetry codes: (i) x−1, y, z; (ii) x, y−1, z; (iii) −x, −y+1, −z; (iv) −x+1, −y+1, −z; (v) −x+1, −y+1, −z+1; (vi) −x, −y+1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C6H8N3+·Cl−·H2O |
Mr | 175.62 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 7.2570 (15), 11.146 (2), 16.862 (3) |
α, β, γ (°) | 79.24 (3), 82.14 (3), 78.34 (3) |
V (Å3) | 1305.3 (5) |
Z | 6 |
Radiation type | Mo Kα |
µ (mm−1) | 0.39 |
Crystal size (mm) | 0.25 × 0.24 × 0.22 |
Data collection | |
Diffractometer | Rigaku R-AXIS RAPID |
Absorption correction | Multi-scan (ABSCOR; Higashi, 1995) |
Tmin, Tmax | 0.909, 0.918 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 12872, 5919, 4550 |
Rint | 0.024 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.035, 0.117, 1.11 |
No. of reflections | 5919 |
No. of parameters | 418 |
H-atom treatment | All H-atom parameters refined |
Δρmax, Δρmin (e Å−3) | 0.23, −0.26 |
Computer programs: RAPID-AUTO (Rigaku, 1998), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), DIAMOND (Brandenburg, 1999) and SHELXP97 (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N23—H23B···O1i | 0.87 (2) | 1.97 (2) | 2.829 (2) | 173 (2) |
N22—H22B···Cl1 | 0.89 (3) | 2.31 (3) | 3.187 (2) | 169 (2) |
N12—H12B···Cl3ii | 0.91 (2) | 2.35 (2) | 3.2522 (19) | 170.2 (18) |
O1—H1B···Cl3 | 0.80 (3) | 2.37 (3) | 3.163 (2) | 169 (2) |
N2—H2A···Cl2iii | 0.85 (3) | 2.49 (3) | 3.326 (2) | 167 (2) |
O1—H10···Cl2iv | 0.98 (4) | 2.22 (4) | 3.1902 (19) | 173 (3) |
N3—H3A···O2 | 0.87 (2) | 1.94 (2) | 2.808 (2) | 174.9 (19) |
N2—H2B···Cl1 | 0.96 (2) | 2.32 (2) | 3.2754 (17) | 170.9 (17) |
N12—H12A···Cl3v | 0.89 (2) | 2.43 (2) | 3.313 (2) | 171 (2) |
N23—H23A···Cl3vi | 0.87 (2) | 2.50 (2) | 3.324 (2) | 158 (2) |
N13—H13B···O3ii | 0.92 (2) | 1.97 (2) | 2.883 (2) | 178 (2) |
N22—H22A···Cl2iii | 0.91 (2) | 2.43 (3) | 3.3194 (18) | 168 (2) |
N13—H13A···Cl1 | 0.91 (2) | 2.48 (2) | 3.335 (2) | 156.9 (19) |
O3—H03B···Cl2iv | 0.84 (4) | 2.45 (4) | 3.286 (2) | 174 (3) |
O2—H0B···Cl1 | 0.85 (3) | 2.28 (3) | 3.1171 (18) | 172 (2) |
O2—H0A···Cl2 | 0.79 (3) | 2.40 (3) | 3.1833 (18) | 175 (3) |
O3—H03A···Cl3 | 0.94 (4) | 2.25 (4) | 3.1586 (18) | 164 (3) |
Symmetry codes: (i) x−1, y, z; (ii) x, y−1, z; (iii) −x, −y+1, −z; (iv) −x+1, −y+1, −z; (v) −x+1, −y+1, −z+1; (vi) −x, −y+1, −z+1. |
Acknowledgements
The authors gratefully acknowledge financial support from the Education Department of Liaoning Province (2009 A 265) and Liaoning University.
References
Brandenburg, K. (1999). DIAMOND. Crystal Impact GbR, Bonn, Germany. Google Scholar
Fan, P., Wang, L. & Zhang, H. (2009). Acta Cryst. E65, o2408. Web of Science CSD CrossRef IUCr Journals Google Scholar
Góker, H., Ózden, S., Yildiz, S. & Boykin, D. W. (2005). Eur. J. Med. Chem. 40, 1062–1069. Web of Science PubMed Google Scholar
Guo, J., Wong, W.-K. & Wong, W.-Y. (2005). Polyhedron, 24, 927–939. Web of Science CSD CrossRef CAS Google Scholar
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The pyridinecarboximidamidate derivatives have attracted a great attention due to their very potent antibacterial activities, interesting biological properties and applications in coordination chemistry, but a few samples have been reported (Guo et al., 2005; Góker et al., 2005; Walther et al., 2006; Fan et al., 2009). Here we report the structure of title compound C6H8N3+.Cl-.H2O. The title compound is an organic salt and crystallizes with three formula units in the asymmetric unit (Fig. 1). The molecules are nonplanar with the C(NH2)2 groups twisted out of the ring planes. The bond lengths and angles exhibit normal values and are comparable with those in the related structures (Guo et al., 2005; Fan et al., 2009).
In the crystal structure, pyridine carboximidamidate cations adopt three different connecting types (Fig. 2). Each pyridine carboximidamidate cation is linked to another cation through N—H···N hydrogen bonds, to chloride ions by N—H···Cl hydrogen bonds, and to water molecules by N—H···O hydrogen bonds. Water molecules and chloride ions are also linked together via O—H···Cl hydrogen bonds (Table 1). In the crystal structure, all these intermolecular interactions result in a three-dimensional network (Fig. 3).