| 单词 | metal cluster | 
| 释义 | > as lemmasmetal cluster   metal cluster  n. Chemistry a compound consisting of or containing a group of metal atoms (sometimes associated with non-metal atoms) linked together by covalent or coordinate bonds. ΚΠ 1965    S. A. F. Kettle in  Nature 25 Sept. 1384/2 		(heading)	  				Octahedral metal clusters. 1983    McGraw-Hill Encycl. Chem. 595/1  				Metal clusters in solution fall into two general categories: those encumbered with a co-ordination sphere of chemically bound ligands (ligated clusters), and those surrounded only by a sphere of solvent molecules (the so-called naked clusters). 1990    N. W. Alcock Bonding & Structure ix. 242 		(caption)	  				The [Ni38Pt6(CO)48H6−n]n− metal cluster. < as lemmas  | 
	
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