New Functional Cyclic Aminomethylphosphine Ligands for the Construction of Catalysts for Electrochemical Hydrogen Transformations
作者:Elvira I. Musina、Vera V. Khrizanforova、Igor D. Strelnik、Murad I. Valitov、Yulia S. Spiridonova、Dmitry B. Krivolapov、Igor A. Litvinov、Marsil K. Kadirov、Peter Lönnecke、Evamarie Hey-Hawkins、Yulia H. Budnikova、Andrey A. Karasik、Oleg G. Sinyashin
DOI:10.1002/chem.201304234
日期:2014.3.10
complexes [(κ2‐P,P‐L)MCl2], cationic bis‐P,P‐chelate complexes [(κ2‐P,P‐L)2M]2+, or a five‐coordinate complex [(κ2‐P,P‐L)2NiBr]Br. The electrochemical behavior of two of the nickel complexes, and their catalytic activities in electrochemical hydrogen evolution and hydrogen oxidation, including the fuel‐cell test, have been studied.
八元环状官能双膦,即1,5-二-芳基- 3,7-二(2-吡啶基)-1,5-二氮杂-3,7- diphosphacyclooctanes(芳基= 2-吡啶基,米甲苯基,p甲苯基,二苯基甲基,苄基,(- [R )- (+) - (α -甲基)苄基),与磷原子2-吡啶基取代基已经被2-吡啶基膦,甲醛,和相应的伯胺的缩合合成。X射线晶体学研究了其中某些双膦的结构。双膦容易形成中性P,P-螯合络合物[(κ 2 -P,P-L)的MC1 2 ],阳离子双-P,P-螯合络合物[(κ 2 -P,P-L)2 M] 2 +,或五坐标配合物[(κ2 -P,P-L)2 NIBR]溴。两个镍配合物,以及它们在电化学析氢和氢的氧化,包括燃料电池试验的催化活性的电化学行为,进行了研究。