Colorimetric Detection of Small Molecules by a Frustrated Lewis Pair Containing a Phosphorus‐Functionalized CycloheptatrienylCyclopentadienyl Titanium Sandwich Complex | Zendy

Theuergarten Eileen | Zendy; Tagne Kuate Alain C. | Zendy; Freytag Matthias | Zendy; Tamm Matthias | Zendy

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Colorimetric Detection of Small Molecules by a Frustrated Lewis Pair Containing a Phosphorus‐Functionalized CycloheptatrienylCyclopentadienyl Titanium Sandwich Complex

Author(s) -

Theuergarten Eileen,

Tagne Kuate Alain C.,

Freytag Matthias,

Tamm Matthias

Publication year - 2015

Publication title -

israel journal of chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.908

H-Index - 54

eISSN - 1869-5868

pISSN - 0021-2148

DOI - 10.1002/ijch.201400147

Subject(s) - chemistry , frustrated lewis pair , bathochromic shift , cyclopentadienyl complex , photochemistry , titanium , borane , heterolysis , boranes , moiety , inorganic chemistry , lewis acids and bases , stereochemistry , organic chemistry , catalysis , boron , physics , quantum mechanics , fluorescence

The phosphorus‐functionalized cycloheptatrienylcyclopentadienyl (ChtCp) titanium sandwich complex [(η 7 ‐C 7 H 7 )Ti(η 5 ‐C 5 H 4 P t Bu 2 )] ( 7 ) forms a frustrated Lewis pair (FLP) in combination with the borane B(C 6 F 5 ) 3 , and this FLP undergoes heterolytic cleavage of dihydrogen and fixation of carbon dioxide and nitrous oxide with a noticeable colorimetric response, which is visible to the naked eye. In their UV/Vis spectra, the H 2 , CO 2 and N 2 O fixation products exhibit a bathochromic shift of the absorption band that can be assigned to a HOMOLUMO excitation of the ChtCp titanium (troticene) moiety.

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