Preparation and Steric Structures

Before further discussion, some technical terms relevant to the structural discussions are described here. Bite distance B) is the distance 

Structural Data for Quadruply Bridged Diplatinum, Dipalladium, and Dinickel Compounds  

Compound Oxidation state Ligand type Bite distance (A) M—M distance (A) Deviation (A) Twist angle C ) M—M—X C) M—X (A) Reference 

The data listed in the table are calculated from the atomic coordinates when the corresp onding data are missing in the literature. 

J This value could not be calculated owing to lack of atomic coordinates in the literature. 

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