The Bi atom in the title compound, [Bi(C₇H₁₄NS₂)₃], is coordinated by six S atoms from three bidentate N-butyl-N-ethyl­di­thio­carbamate ligands; it is also engaged in an additional BiS interaction which links two tris(N-butyl-N-ethyl­di­thio­carbamato)­bismuth fragments into centrosymmetric binuclear dimers. Thus, each of the Bi atoms in the dimer has a distorted pentagonal–bipyramidal environment, with one short axial Bi—S distance of 2.608 (2) Å, one long axial BiS interaction of 3.334 (2) Å, and five `regular' equatorial bonds in the range 2.819 (2)-2.867 (2) Å.

The Zn atom in the centrosymmetric title compound, [Zn₂(C₈H₈NS₂)₄], is almost symmetrically coordinated by one terminal bidentate N-phenyl-N-methyl­di­thio­carbamate ligand [Zn—S 2.348 (1) and 2.459 (1) Å] and non-symmetrically coordinated by a second bidentate bridging di­thio­carbamate ligand [Zn—S 2.316 (1) and 2.980 (1) Å]. The latter also uses its bridging S atom to coordinate the second Zn atom [Zn—S 2.378 (1) Å], thus forming a dimeric binuclear complex. Taking into account the long ZnS distance, the Zn atom has a distorted trigonal–bipyramidal coordination.

As a result of its trans geometry, the title compound, [Mo{(C₆H₄Cl)₃P}₂(CO)₄], has short Mo-P bonds [mean value 2.483 (1) Å] in spite of the presence of bulky chloro-substituted phenyl rings. The Mo displays nearly perfect octahedral geometry coordination. Average Mo-C and C-O distances are 2.021 (5) and 1.141 (6) Å, respectively.

In the title compound, C₁₈H₁₂Cl₃OP, the P-O bond distance is 1.483 (3) Å and the mean C-Cl distance is 1.741 (4) Å. Two sets of significantly different P-C-C bond angles are observed: 115.8 (3) and 124.3 (3)°. However, the mean O-P-C bond angle [112.0 (1)°] indicates near-ideal tetrahedral coordination at the P atom. The presence of bulky chloro substituents manifests in different orientations of the phenyl rings.

In the title compound, C₂₂H₂₄N₄O₂S₂, the two thio­urea segments of the side-arm groups are inclined at a dihedral angle of 73.09 (9)°. The central cyclo­hexane bridge adopts a chair conformation. The mol­ecule is stabilized by N—HO intra­molecular hydrogen bonds forming S(6) rings, and N—HO and N—HS inter­molecular hydrogen bonds forming infinite chains developing parallel to the b axis.

The title compound, [Ni(C₅H₁₀NS₂)(C₂₈H₂₈P₂)]ClO₄, is planar. The pairs of Ni-S [2.2089 (8) and 2.2075 (8) Å] and Ni-P [2.1945 (7) and 2.1932 (8) Å] bond lengths are respectively equal, and the P-Ni-P angle [95.12 (3)°] is large as a consequence of the flexible butyl chain between the two P atoms. The butyl chain lies on one side of the planar NiS₂P₂ chromophore and two of the phenyl rings are arranged laterally above the plane.