Nonaaqua­neodymium(III) trichloride bis­(1,3,5,7-tetra­aza­tricyclo­[3.3.1.1^3,7]deca­ne tetra­hydrate

The crystal structure of the title compound, [Nd(H₂O)₉]Cl₃·2C₆H₁₂N₄·4H₂O, is the first neodymium chloride complex with a cage adamanzane without any chloride ion in the lanthanide coordination sphere. The Nd-O distances range from 2.4425 (17) to 2.5635 (18) Å, and the neodymium ion has the coordination geometry of a capped square antiprism distorted toward a tricapped trigonal prism. The cations, [Nd(H₂O)₉]³⁺, are connected via hydrogen bonds to hexa­methyl­enetetra­mine mol­ecules, water mol­ecules and chloride ions.

[2-Acetyl­pyridine 1,1-(hexane-1,6-di­yl)thio­semicarbazone-κ³N,N′,S]chloro­platinum(II)

In the title compound, [Pt(C₁₄H₁₉N₄S)Cl], the azepane ring is partially disordered over two sites. The Pt atom coordination adopts a slightly distorted square-planar geometry. The 2-acetyl­pyridine thio­semicarbazone moiety is very close to planar. The azepane ring has a (−sc, +sc)₃, +sp conformation (sc is synclinal and sp is synperiplanar) and, for the minor disorder component, a (−sc, +sc)₃, −sp conformation. The computed bond valences for the Pt centre are ν_Pt—N = 0.467 and 0.587, ν_Pt—S = 0.60, and ν_Pt—Cl = 0.48 v.u. (valence units), and thus the computed valence of the Pt atom is 2.13 v.u. π–π stacking inter­actions give rise to π-bonded dimers.