Six novel platinum(II) complexes of the form [Pt(dach)L₂](NO₃)₂, where dach = trans-1,2-diaminocyclohexane, L = thiourea (tu) or its derivatives, including 1-acetyl-2-thiourea, 1-ethyl-2-thiourea, 2-imidazolidinethione, 1,3-dimethyl-2-thiourea and 1,1,3,3-tetramethyl-2-thiourea, have been synthesized and characterized by elemental analysis, IR spectrometry, and NMR (¹H and ¹³C) spectroscopy. The general synthetic procedure involves the reaction of [Pt(dach)(H₂O)₂](NO₃)₂, which is formed in situ by treating Pt(dach)I₂ with silver nitrate, and two equivalents of tu or its derivatives. All the complexes are ionic compounds with nitrate counter ions and thus water soluble. The crystal structure of [Pt(dach)(tu)₂](NO₃)₂·H₂O is determined using a single crystal X-ray diffraction method. This compound crystallizes in the orthorhombic space group Pnma with centrosymmetry.

中文翻译：

---

含二氨基环己烷和硫脲衍生物配体的新型铂（II）配合物：一水合（反式-1,2-二氨基环己烷）二硫脲铂（II）的合成和X射线晶体结构

六种新颖的[Pt（dach）L ₂ ]（NO ₃）₂形式的铂（II）配合物，其中dach = 反式-1,2-二氨基环己烷，L =硫脲（tu）或其衍生物，包括1-乙酰基-通过元素分析，IR合成了2-硫脲，1-乙基-2-硫脲，2-咪唑烷硫酮，1,3-二甲基-2-硫脲和1,1,3,3-四甲基-2-硫脲光谱和NMR（¹ H和¹³ C）光谱。通用的合成方法涉及[Pt（dach）（H ₂ O）₂ ]（NO ₃）_2的反应，该反应是通过处理Pt（dach）I ₂原位形成的。含硝酸银和两当量的tu或其衍生物。所有的配合物都是具有硝酸根抗衡离子的离子化合物，因此是水溶性的。[Pt（dach）（tu）₂ ]（NO ₃）₂ ·H ₂ O的晶体结构使用单晶X射线衍射法求出。该化合物在中心对称的正交晶体空间群Pnma中结晶。