scholarly journals The Triple-Decker Complex [Cp*Fe(µ,η5:η5-P5)Mo(CO)3] as a Building Block in Coordination Chemistry

Molecules ◽  
2019 ◽  
Vol 24 (2) ◽  
pp. 325
Author(s):  
Mehdi Elsayed Moussa ◽  
Stefan Welsch ◽  
Luis Dütsch ◽  
Martin Piesch ◽  
Stephan Reichl ◽  
...  

Although the triple-decker complex [Cp*Fe(µ,η5:η5-P5)Mo(CO)3] (2) was first reported 26 years ago, its reactivity has not yet been explored. Herein, we report a new high-yielding synthesis of 2 and the isolation of its new polymorph (2’). In addition, we study its reactivity towards AgI and CuI ions. The reaction of 2 with Ag[BF4] selectively produces the coordination compound [Ag{Cp*Fe(µ,η5:η5-P5)Mo(CO)3}2][BF4] (3). Its reaction with Ag[TEF] and Cu[TEF] ([TEF]− = [Al{OC(CF3)3}4]−) leads to the selective formation of the complexes [Ag{Cp*Fe(µ,η5:η5-P5)Mo(CO)3}2][TEF] (4) and [Cu{Cp*Fe(µ,η5:η5-P5)Mo(CO)3}2][TEF] (5), respectively. The X-ray structures of compounds 3–5 each show an MI ion (MI = AgI, CuI) bridged by two P atoms from two triple-decker complexes (2). Additionally, four short MI···CO distances (two to each triple-decker complex 2) participate in stabilizing the coordination sphere of the MI ion. Evidently, the X-ray structure for compound 3 shows a weak interaction of the AgI ion with one fluorine atom of the counterion [BF4]−. Such an Ag···F interaction does not exist for compound 4. These findings demonstrate the possibility of using triple-decker complex 2 as a ligand in coordination chemistry and opening a new perspective in the field of supramolecular chemistry of transition metal compounds with phosphorus-rich complexes.

2002 ◽  
Vol 71 (1) ◽  
pp. 347-356 ◽  
Author(s):  
Masahiko Matsubara ◽  
Takayuki Uozumi ◽  
Akio Kotani ◽  
Yoshihisa Harada ◽  
Shik Shin

2011 ◽  
Vol 26 (12) ◽  
pp. 2467 ◽  
Author(s):  
Stjepko Fazinić ◽  
Luka Mandić ◽  
Matjaž Kavčič ◽  
Iva Božičević

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