According to the conventional view, liquid water has a similar, albeitless rigid, structure, in which extra molecules can pack into some ofthe open gaps in the tetrahedral arrangement.
根据传统观点，液态的水分子也是类似排列，尽管不那么严格，额外的分子会被包进四面体孔隙里。
2
This contradicts numerous theoretical studies which indicated a primarily tetrahedral coordination structure with a solvation number near 2 or 3, depending on the prevalence of ion pairing.
"Our results indicate a solvation number of 4.5, which points to a non-tetrahedral solvation structure for the lithium ions," says lithium-battery expert Harris.