Catalytic consequences of composition in polyoxometalate clusters with keggin structure

Josef Macht; Michael J. Janik; Matthew Neurock; Enrique Iglesia

doi:10.1002/anie.200701292

Catalytic consequences of composition in polyoxometalate clusters with keggin structure

Josef Macht, Michael J. Janik, Matthew Neurock, Enrique Iglesia

Research output: Contribution to journal › Article › peer-review

111 Scopus citations

Abstract

(Graph Presented) Rate constants for acid-catalyzed butanol dehydration on Keggin-type polyoxometalate clusters H_8-nXⁿ⁺W ₁₂O₄₀ (X=P, Si, Al, Co) increase as the oxidation state of the central atom increases and the number of cluster protons concurrently decreases (see diagram). These trends reflect the lower deprotonation enthalpies of clusters with high valent central atoms and their stability as the anionic conjugate base in ionic transition states involved in dehydration catalysis.

Original language	English (US)
Pages (from-to)	7864-7868
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	46
Issue number	41
DOIs	https://doi.org/10.1002/anie.200701292
State	Published - 2007

All Science Journal Classification (ASJC) codes

Catalysis
General Chemistry

Access to Document

10.1002/anie.200701292

Cite this

@article{565954f99455416f9a87c98491f88a7a,

title = "Catalytic consequences of composition in polyoxometalate clusters with keggin structure",

abstract = "(Graph Presented) Rate constants for acid-catalyzed butanol dehydration on Keggin-type polyoxometalate clusters H8-nXn+W 12O40 (X=P, Si, Al, Co) increase as the oxidation state of the central atom increases and the number of cluster protons concurrently decreases (see diagram). These trends reflect the lower deprotonation enthalpies of clusters with high valent central atoms and their stability as the anionic conjugate base in ionic transition states involved in dehydration catalysis.",

author = "Josef Macht and Janik, {Michael J.} and Matthew Neurock and Enrique Iglesia",

year = "2007",

doi = "10.1002/anie.200701292",

language = "English (US)",

volume = "46",

pages = "7864--7868",

journal = "Angewandte Chemie - International Edition",

issn = "1433-7851",

publisher = "John Wiley and Sons Ltd",

number = "41",

}

TY - JOUR

T1 - Catalytic consequences of composition in polyoxometalate clusters with keggin structure

AU - Macht, Josef

AU - Janik, Michael J.

AU - Neurock, Matthew

AU - Iglesia, Enrique

PY - 2007

Y1 - 2007

N2 - (Graph Presented) Rate constants for acid-catalyzed butanol dehydration on Keggin-type polyoxometalate clusters H8-nXn+W 12O40 (X=P, Si, Al, Co) increase as the oxidation state of the central atom increases and the number of cluster protons concurrently decreases (see diagram). These trends reflect the lower deprotonation enthalpies of clusters with high valent central atoms and their stability as the anionic conjugate base in ionic transition states involved in dehydration catalysis.

AB - (Graph Presented) Rate constants for acid-catalyzed butanol dehydration on Keggin-type polyoxometalate clusters H8-nXn+W 12O40 (X=P, Si, Al, Co) increase as the oxidation state of the central atom increases and the number of cluster protons concurrently decreases (see diagram). These trends reflect the lower deprotonation enthalpies of clusters with high valent central atoms and their stability as the anionic conjugate base in ionic transition states involved in dehydration catalysis.

UR - http://www.scopus.com/inward/record.url?scp=35348966918&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=35348966918&partnerID=8YFLogxK

U2 - 10.1002/anie.200701292

DO - 10.1002/anie.200701292

M3 - Article

C2 - 17828722

AN - SCOPUS:35348966918

SN - 1433-7851

VL - 46

SP - 7864

EP - 7868

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

IS - 41

ER -

Catalytic consequences of composition in polyoxometalate clusters with keggin structure

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this