Crystal structure of dipotassium N-carbodi­thio­ato-l-prolinate trihydrate

The Crystal and Molecular Structure of 8,2'-Cycloadenosine Trihydrate BY S. NEIDLE,* G. L. TAYLOR AND P. C. COWLING

8,2'-Cycloadenosine, C IoHi~NsO4.3H20, is a modified arabinosyladenosine nucleoside which has been cyclized at the C(8) and 0(2 ' ) atoms. THe trihydrate crystallizes in the orthorhombic space group P2~2~2~, with a = 8.680 (2), b = 5.991 (2), c = 27.203 (4) A, Z = 4. The structure was refined to R = 0.0672 for 1411 unique reflections, photographically recorded. The arabinofuranose ring has a fl...

2,4-Dimethylbenzaldehyde isonicotinoylhydrazone trihydrate: a three-dimensional hydrogen-bonded framework structure.

In the title compound, C(15)H(15)N(3)Ox3H(2)O, two of the three water molecules exhibit disorder. The molecular components are linked into a three-dimensional framework by a combination of N-H...O, O-H...N and O-H...O hydrogen bonds.

Dipotassium disulfanilamidate trihydrate

The asymmetric unit of the title compound, 2K(+)·2C(6)H(7)N(2)O(2)S(-)·3H(2)O, consists of two potassium cations located on mirror planes, one sulfanilamidate anion in a general position and one and a half mol-ecules of water, one of which is also located on a mirror plane. One potassium cation is seven-coordinated by six sulfonyl O atoms and one water mol-ecule, whereas the other is surrounded...

Crystal structure of (Z)-2-hy­droxy-4-methyl-N′-(4-oxo-1,3-thia­zolidin-2-yl­idene)benzohydrazide trihydrate

In the title compound, C11H11N3O3S·3H2O, the non-H atoms of the main mol-ecule are approximately planar, with an r.m.s. deviation of 0.030 Å. There is a bifurcated intra-molecular N-H⋯(O,S) hydrogen bond present forming S(6) and S(5) ring motifs. In the crystal, O-H⋯O and N-H⋯O hydrogen bonds link the molecules into a three-dimensional network.

The Crystal Structure of Monoaquabis(trans-5- -methylpyrazine-2-carboxylato-N,O)copper(II) Trihydrate