想问下Pd（dba）2 和 Pd2（dba）3有什么区别，为什么Pd2（dba）3有多个CAS号?Pd(dba)2 is formulated more correctly as Pd2(dba)3·dba, in which the binuclear complex consists of two Pd atoms bridged by three dba molecules via the C=C olefin portions and the last dba does not coordinate to the Pd center (J. Chem. Soc., Chem. Commun. 1970, 1065; J. Organomet. Chem. 1974, 65, 253). The main difference between Pd2(dba)3 and Pd(dba)2 is the Pd/dba stoichiometry， 这是查了一个文献的结果，Org. Lett. 2014, 16, 4074−4077 另外做Miyaura硼酸酯一般用Pd(dppf)Cl2，需要用Pd2（dba）3吗查看更多
关于Cu的元素价态XPS、LMM，LVV？这个，我也弄了很久。 给你个文献，看下你就明白了。 Highly efficient and robust Cu catalyst for non-oxidative dehydrogenation of ethanol to acetaldehyde and hydrogen https://doi.org/10.1016/j.jcat.2020.05.018查看更多
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