IR Signature of Size‐Selective CO 2  Activation on Small Platinum Cluster Anions, Pt  n   −  ( n =4–7) | Zendy

Green Alice E. | Zendy; Justen Jasmin | Zendy; Schöllkopf Wieland | Zendy; Gentleman Alexander S. | Zendy; Fielicke André | Zendy; Mackenzie Stuart R. | Zendy

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IR Signature of Size‐Selective CO 2 Activation on Small Platinum Cluster Anions, Pt n − ( n =4–7)

Author(s) -

Green Alice E.,

Justen Jasmin,

Schöllkopf Wieland,

Gentleman Alexander S.,

Fielicke André,

Mackenzie Stuart R.

Publication year - 2018

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.201809099

Subject(s) - dissociation (chemistry) , platinum , cluster (spacecraft) , chemistry , bond dissociation energy , infrared spectroscopy , activation energy , density functional theory , cluster size , binding energy , metal , analytical chemistry (journal) , atomic physics , computational chemistry , molecular dynamics , physics , catalysis , organic chemistry , computer science , programming language

Infrared multiple photon dissociation spectroscopy (IR‐MPD) has been employed to determine the nature of CO 2 binding to size‐selected platinum cluster anions, Pt n − ( n =4–7). Interpreted in conjunction with density functional theory simulations, the results illustrate that the degree of CO 2 activation can be controlled by the size of the metal cluster, with dissociative activation observed on all clusters n ≥5. Of potential practical significance, in terms of the use of CO 2 as a useful C1 feedstock, CO 2 is observed molecularly‐bound, but highly activated, on the Pt 4 − cluster. It is trapped behind a barrier on the reactive potential energy surface which prevents dissociation.

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