Grechi Cristian, Carlotto Silvia, Guelfi Massimo, Samaritani Simona, Armelao Lidia, Labella Luca
Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, 56124 Pisa, Italy.
Istituto di Chimica della Materia Condensata e di Tecnologie per l'Energia (ICMATE), Consiglio Nazionale delle Ricerche (CNR) e INSTM, Presso Dipartimento di Scienze Chimiche, Università di Padova, Via Marzolo 1, 35131 Padova, Italy.
Molecules. 2024 Aug 20;29(16):3927. doi: 10.3390/molecules29163927.
Sandwich d/f heterometallic complexes [(Ln(hfac))M(acac)] (Ln = La, Pr, Sm, Dy and M = Co; Ln = La and M = Ru) were prepared in strictly anhydrous conditions reacting the formally unsaturated fragment [Ln(hfac)] and [M(acac)] in a 2-to-1 molar ratio. These heterometallic complexes are highly sensitive to moisture. Spectroscopic observation revealed that on hydrolysis, these compounds yield dinuclear heterometallic compounds [Ln(hfac)M(acac)], prepared here for comparison purposes only. Quantum mechanical calculations supported, on the one hand, the hypothesis on the geometrical arrangement obtained from ATR-IR and NMR spectra and, on the other hand, helped to rationalize the spontaneous hydrolysis reaction.
三明治型d/f异金属配合物[(Ln(hfac))M(acac)]（Ln = 镧、镨、钐、镝，M = 钴；Ln = 镧，M = 钌）是在严格无水条件下，使形式上不饱和的片段[Ln(hfac)]与[M(acac)]按2:1的摩尔比反应制备而成。这些异金属配合物对水分高度敏感。光谱观察表明，水解时这些化合物会生成双核异金属化合物[Ln(hfac)M(acac)]，此处仅为比较目的而制备。量子力学计算一方面支持了从衰减全反射红外光谱（ATR-IR）和核磁共振光谱（NMR）获得的几何排列假设，另一方面有助于解释自发水解反应。
