在化学性质方面，钆示踪剂以络合物的形式存在，比硼有更强的稳定性和安全性。
The chemical property of gadolinium is more stable and safer than that of boron, because gadolinium tracer stays as a complex compound.
采用化学键联和溶胶-凝胶相结合的方法制备了带锚链固定的多相化铑膦络合物催化剂。
Heterogenized rhodium complex was prepared by the combination method of anchoring and sol-gel technique.
对于双取代络合物ma4b2，其平面排列有三个异构体，常见的为有机化学中的邻位、间位和对位排列。
FOR a disubstituted complex, MA4B2, the planar arrangement gives three isomers, the familiar ortho, meta, and para arrangements of organic chemistry.
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