The dihedral angles between these least-squares planes are 109.14 (4), 101.90 (6) and 106.55 (6) °. The three C atoms around the central V atom (C10, C20 and C30) form a regular triangle, with C--V---C angles close to 120 °. All of the above features show that compound (1) ( Fig. 1) can be viewed as a screw-propeller structure centered on the V atom, with the VSzCNC2 units as the screw leaves. C3~~7/C32 C33 ~~~N3 C31 AbstractIn the title compound, [V(CsHIoNS2)3], three diethyldithiocarbamate (Et2dtc-) ligands chelate to the V atom, with an average S--V---S bite angle of 72.77(4) °, forming a screw-propeller structure centered on the V atom. The average V--S bond distance is 2.434 (1),~,.

In the cluster cation of the title compound, [Mo3S7-(Et2NCS2)3](Et2NCS2), three Mo atoms form an approximately equilateral triangle, with Mo---Mo distances ranging from 2.7140(5) to 2.7277 (5).4,, and Mo--Mo---Mo angles of ca 60 °. The triangle is capped by the/z3-S atom, and each Mo---Mo bond is bridged by a disulfido group in #2-772 mode. Diethyldithiocarbamate ligands (Et2dtc) are chelated to the Mo atoms with an average S--Mo--S bite angle of 69.98 (1) °. There is a weak S-.-S interaction between the cluster cation and the anion (Et2dtc-). CommentCompounds containing the [MOBS7] ~ core have been studied extensively (Miiller et al., 1979;Keck et al.,