organic compounds
5,5′-(Butane-1,4-diyl)bis(1H-tetrazole) dihydrate
aCollege of Biology, Chemistry and Material Science, East China of Technology, 344000 Fuzhou, Jiangxi, People's Republic of China
*Correspondence e-mail: tongxiaolan@163.com
The title compound, C6H10N8·2H2O, was prepared by the reaction of hexanedinitrile and sodium azide. The di-1H-tetrazole molecule lies on a crystallographic centre of inversion and is linked to the water molecules by N—H⋯O and O—H⋯N hydrogen bonds, forming a two-dimensional supramolecular structure in the crystal.
Related literature
For tetrazole derivatives, see: Demko & Sharpless (2001); Diop et al. (2002); Kitagawa et al. (2004); Li et al. (2007); Tamura et al. (1998); Tong et al. (2009); Zhao et al. (2008).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Siemens, 1996); cell SAINT (Siemens, 1996); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg, 1999); software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536810048993/bt5418sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810048993/bt5418Isup2.hkl
1,2-Bis(tetrazol-5-yl)butane was prepared using a reported procedure (Tong et al., 2009) (Scheme I). 1,2-Bis(tetrazol-5-yl)butane and water (12 ml) was sealed in a 25 ml Teflon-lined stainless steel vessel and heated at 393 k for 72 hr., then cooled to room temperature. Colorless prism-shaped crystals of the title compound were isolated and washed with water and ethanol and dried in air.
All H atoms were placed in idealized positions (O—H = 0.85 Å, N—H = 0.86 Å and C—H = 0.95 Å) and refined as riding atoms with Uiso(H) = 1.2Ueq(C, N) and Uiso(H) = 1.5Ueq(O).
The tetrazole derivatives are very important molecules in pharmacological and biochemical properties (Tamura et al., 1998). Since Sharpless et al. have introduced a simple and effective method to synthesize the tetrazole derivatives (Demko et al., 2001), they have been used extensively in areas as diverse as medicinal chemistry, coordination chemistry and material chemistry (Zhao et al., 2008; Kitagawa et al., 2004; Li et al., 2007). Among these, The flexible 5-substituted tetrazolate ligands have been less investigated (Diop et al., 2002), although we have studied the coordination of the bis(tetrazole) ligands separated by alkyl (CH2)n spacers (Tong et al., 2009). Here, as the additional of our work, we report the
of the title compound (Fig. 1).1,2-Bis(tetrazol-5-yl)butpane lies on a crystallographic centre of inversion and is linked to the water molecules by N—H···O and O—H···N hydrogen bonds into a 2-D supramolecular structure (Fig. 2).
For tetrazole derivatives, see: Demko & Sharpless (2001); Diop et al. (2002); Kitagawa et al. (2004); Li et al. (2007); Tamura et al. (1998); Tong et al. (2009); Zhao et al. (2008).
Data collection: SMART (Siemens, 1996); cell
SAINT (Siemens, 1996); data reduction: SAINT (Siemens, 1996); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg, 1999); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).C6H10N8·2H2O | F(000) = 488 |
Mr = 230.25 | Dx = 1.362 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 1178 reflections |
a = 6.994 (3) Å | θ = 2.9–25.0° |
b = 11.590 (5) Å | µ = 0.11 mm−1 |
c = 14.097 (6) Å | T = 294 K |
β = 100.716 (7)° | Block, colorless |
V = 1122.8 (8) Å3 | 0.20 × 0.18 × 0.16 mm |
Z = 4 |
Bruker SMART CCD area-detector diffractometer | 992 independent reflections |
Radiation source: fine-focus sealed tube | 722 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.025 |
φ and ω scans | θmax = 25.0°, θmin = 2.9° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −7→8 |
Tmin = 0.979, Tmax = 0.983 | k = −13→10 |
2756 measured reflections | l = −16→15 |
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)] = 0.052 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.147 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0759P)2 + 0.9248P] where P = (Fo2 + 2Fc2)/3 |
992 reflections | (Δ/σ)max < 0.001 |
73 parameters | Δρmax = 0.16 e Å−3 |
0 restraints | Δρmin = −0.21 e Å−3 |
C6H10N8·2H2O | V = 1122.8 (8) Å3 |
Mr = 230.25 | Z = 4 |
Monoclinic, C2/c | Mo Kα radiation |
a = 6.994 (3) Å | µ = 0.11 mm−1 |
b = 11.590 (5) Å | T = 294 K |
c = 14.097 (6) Å | 0.20 × 0.18 × 0.16 mm |
β = 100.716 (7)° |
Bruker SMART CCD area-detector diffractometer | 992 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 722 reflections with I > 2σ(I) |
Tmin = 0.979, Tmax = 0.983 | Rint = 0.025 |
2756 measured reflections |
R[F2 > 2σ(F2)] = 0.052 | 0 restraints |
wR(F2) = 0.147 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.16 e Å−3 |
992 reflections | Δρmin = −0.21 e Å−3 |
73 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 | ||
O1W | 0.2175 (3) | 0.10913 (15) | 0.88483 (13) | 0.0697 (7) | |
H1WA | 0.2503 | 0.0847 | 0.9424 | 0.105* | |
H1WB | 0.2153 | 0.1823 | 0.8886 | 0.105* | |
N1 | 0.2521 (3) | −0.00531 (16) | 0.72515 (14) | 0.0487 (6) | |
H1 | 0.2430 | 0.0355 | 0.7751 | 0.058* | |
N2 | 0.2517 (4) | −0.11987 (17) | 0.72219 (16) | 0.0607 (7) | |
N3 | 0.2679 (4) | −0.14652 (18) | 0.63566 (16) | 0.0624 (7) | |
N4 | 0.2787 (4) | −0.05060 (17) | 0.58246 (14) | 0.0536 (7) | |
C1 | 0.2683 (4) | 0.0365 (2) | 0.63995 (16) | 0.0422 (6) | |
C3 | 0.2750 (4) | 0.1611 (2) | 0.61690 (17) | 0.0505 (7) | |
H3A | 0.3991 | 0.1922 | 0.6488 | 0.061* | |
H3B | 0.1737 | 0.2006 | 0.6428 | 0.061* | |
C4 | 0.2488 (4) | 0.1863 (2) | 0.50977 (17) | 0.0463 (7) | |
H4A | 0.3525 | 0.1493 | 0.4838 | 0.056* | |
H4B | 0.1261 | 0.1541 | 0.4771 | 0.056* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1W | 0.131 (2) | 0.0449 (11) | 0.0368 (11) | 0.0010 (11) | 0.0256 (11) | −0.0017 (8) |
N1 | 0.0817 (16) | 0.0361 (12) | 0.0306 (11) | −0.0005 (10) | 0.0162 (10) | 0.0006 (9) |
N2 | 0.101 (2) | 0.0406 (13) | 0.0419 (13) | −0.0030 (12) | 0.0169 (12) | 0.0072 (10) |
N3 | 0.108 (2) | 0.0365 (12) | 0.0451 (14) | −0.0027 (12) | 0.0196 (13) | 0.0011 (10) |
N4 | 0.0960 (18) | 0.0327 (11) | 0.0344 (11) | −0.0022 (11) | 0.0181 (11) | 0.0010 (9) |
C1 | 0.0603 (16) | 0.0364 (12) | 0.0306 (12) | −0.0024 (11) | 0.0103 (10) | 0.0003 (10) |
C3 | 0.082 (2) | 0.0344 (13) | 0.0373 (14) | −0.0022 (12) | 0.0157 (12) | −0.0011 (11) |
C4 | 0.0661 (16) | 0.0366 (13) | 0.0373 (13) | −0.0007 (12) | 0.0120 (11) | 0.0020 (10) |
O1W—H1WA | 0.8500 | C1—C3 | 1.482 (3) |
O1W—H1WB | 0.8500 | C3—C4 | 1.516 (3) |
N1—C1 | 1.320 (3) | C3—H3A | 0.9700 |
N1—N2 | 1.328 (3) | C3—H3B | 0.9700 |
N1—H1 | 0.8600 | C4—C4i | 1.503 (5) |
N2—N3 | 1.284 (3) | C4—H4A | 0.9700 |
N3—N4 | 1.351 (3) | C4—H4B | 0.9700 |
N4—C1 | 1.305 (3) | ||
H1WA—O1W—H1WB | 106.1 | C1—C3—H3A | 108.8 |
C1—N1—N2 | 109.8 (2) | C4—C3—H3A | 108.8 |
C1—N1—H1 | 125.1 | C1—C3—H3B | 108.8 |
N2—N1—H1 | 125.1 | C4—C3—H3B | 108.8 |
N3—N2—N1 | 105.69 (19) | H3A—C3—H3B | 107.7 |
N2—N3—N4 | 110.7 (2) | C4i—C4—C3 | 111.7 (3) |
C1—N4—N3 | 106.1 (2) | C4i—C4—H4A | 109.3 |
N4—C1—N1 | 107.7 (2) | C3—C4—H4A | 109.3 |
N4—C1—C3 | 127.6 (2) | C4i—C4—H4B | 109.3 |
N1—C1—C3 | 124.7 (2) | C3—C4—H4B | 109.3 |
C1—C3—C4 | 113.8 (2) | H4A—C4—H4B | 108.0 |
C1—N1—N2—N3 | 0.1 (3) | N2—N1—C1—N4 | −0.1 (3) |
N1—N2—N3—N4 | 0.0 (3) | N2—N1—C1—C3 | −179.6 (2) |
N2—N3—N4—C1 | 0.0 (3) | N4—C1—C3—C4 | 13.6 (4) |
N3—N4—C1—N1 | 0.1 (3) | N1—C1—C3—C4 | −167.1 (3) |
N3—N4—C1—C3 | 179.5 (2) | C1—C3—C4—C4i | 178.4 (3) |
Symmetry code: (i) −x+1/2, −y+1/2, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1W—H1WB···N3ii | 0.85 | 2.02 | 2.851 (3) | 165 |
O1W—H1WA···N4iii | 0.85 | 1.99 | 2.822 (3) | 167 |
N1—H1···O1W | 0.86 | 1.80 | 2.662 (3) | 175 |
Symmetry codes: (ii) −x+1/2, y+1/2, −z+3/2; (iii) x, −y, z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C6H10N8·2H2O |
Mr | 230.25 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 294 |
a, b, c (Å) | 6.994 (3), 11.590 (5), 14.097 (6) |
β (°) | 100.716 (7) |
V (Å3) | 1122.8 (8) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.11 |
Crystal size (mm) | 0.20 × 0.18 × 0.16 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.979, 0.983 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 2756, 992, 722 |
Rint | 0.025 |
(sin θ/λ)max (Å−1) | 0.596 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.052, 0.147, 1.04 |
No. of reflections | 992 |
No. of parameters | 73 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.16, −0.21 |
Computer programs: SMART (Siemens, 1996), SAINT (Siemens, 1996), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), DIAMOND (Brandenburg, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
O1W—H1WB···N3i | 0.85 | 2.02 | 2.851 (3) | 165.2 |
O1W—H1WA···N4ii | 0.85 | 1.99 | 2.822 (3) | 167.0 |
N1—H1···O1W | 0.86 | 1.80 | 2.662 (3) | 174.8 |
Symmetry codes: (i) −x+1/2, y+1/2, −z+3/2; (ii) x, −y, z+1/2. |
Acknowledgements
This work was was supported by the Postgraduate Foundation of East China of Technology (No·Y09–11–02)
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The tetrazole derivatives are very important molecules in pharmacological and biochemical properties (Tamura et al., 1998). Since Sharpless et al. have introduced a simple and effective method to synthesize the tetrazole derivatives (Demko et al., 2001), they have been used extensively in areas as diverse as medicinal chemistry, coordination chemistry and material chemistry (Zhao et al., 2008; Kitagawa et al., 2004; Li et al., 2007). Among these, The flexible 5-substituted tetrazolate ligands have been less investigated (Diop et al., 2002), although we have studied the coordination of the bis(tetrazole) ligands separated by alkyl (CH2)n spacers (Tong et al., 2009). Here, as the additional of our work, we report the crystal structure of the title compound (Fig. 1).
1,2-Bis(tetrazol-5-yl)butpane lies on a crystallographic centre of inversion and is linked to the water molecules by N—H···O and O—H···N hydrogen bonds into a 2-D supramolecular structure (Fig. 2).