Metallophilicity (also called metal–metal bonding) is a structural chemical concept that describes unusual chemical bonding between closed-shell metal centers, despite the formal nd10 electronic configurations.[1, 2] During the past decades, the occurrence of metal–metal interactions have been testified by compelling experimental evidence,[2, 3] but the origin remains controversial.[4–6] Hoffmann and co-worker postulated that the hybridization of ...
![3-[[3-(2-acetyl-3-oxobutyl)phenyl]methyl]pentane-2,4-dione Structure](https://image.chemsrc.com/caspic/350/93040-32-5.png)
![4-[[3-[(3,5-dimethyl-1H-pyrazol-4-yl)methyl]phenyl]methyl]-3,5-dimethyl-1H-pyrazole Structure](https://image.chemsrc.com/caspic/113/885609-02-9.png)
