Comparison of (triphenylphosphine)ruthenium complexes containing the 2,2′:6′,2″-terpyridine (trpy) and 4,4′,4″-tri-t- butyl-2,2′:6′,2″-terpyridine (trpy*) ligands

Susan B. Billings; Michael T. Mock; Kevin Wiacek; Melinda B. Turner; W. Scott Kassel; Kenneth J. Takeuchi; Arnold L. Rheingold; Walter J. Boyko; Carol A. Bessel

doi:10.1016/S0020-1693(03)00300-1

Comparison of (triphenylphosphine)ruthenium complexes containing the 2,2′:6′,2″-terpyridine (trpy) and 4,4′,4″-tri-t- butyl-2,2′:6′,2″-terpyridine (trpy*) ligands

Susan B. Billings
, Michael T. Mock
, Kevin Wiacek
, Melinda B. Turner
, W. Scott Kassel
, Kenneth J. Takeuchi
, Arnold L. Rheingold
, Walter J. Boyko
, Carol A. Bessel

Chemistry

Villanova University
University of Delaware

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

14 Scopus citations

Abstract

A comparison of (triphenylphosphine)ruthenium(II) complexes containing the 2,2′:6′,2″-terpyridine (trpy) and 4,4′,4″-tri-t- butyl-2,2′:6′,2″-terpyridine (trpy*) ligands was conducted. Electronic spectra and electrochemical data readily differentiated the trans- and cis-[RuCl₂(trpy or trpy*)(PPh₃)] complexes. ¹H, ¹³C and ³¹P NMR assignments were made for each of the isomers as well as the trans-[RuCl(trpy*) (PPh₃)₂](PF₆) complex. Notably, the ³¹P chemical shift differences between the trans- and cis-[RuCl ₂(trpy*)(PPh₃)] complexes were not dramatic and the ¹H NMR spectra were found to be the best way for determining the position of the triphenylphosphine ligand relative to the terpyridyl ligand. X-ray crystal structure analyses confirmed the structures of the cis-[RuCl ₂(trpy*)(PPh₃)] and trans-[RuCl(trpy*) (PPh₃)₂]PF₆ complexes. Similar π-stacking interactions occurred between the phenyl rings and the trpy* ligand in both complexes.

Original language	English
Pages (from-to)	103-115
Number of pages	13
Journal	Inorganica Chimica Acta
Volume	355
DOIs	https://doi.org/10.1016/S0020-1693(03)00300-1
State	Published - Nov 20 2003

Keywords

Crystal structures
NMR spectroscopy
Ruthenium
Terpyridine complexes

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10.1016/S0020-1693(03)00300-1

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Billings, S. B., Mock, M. T., Wiacek, K., Turner, M. B., Kassel, W. S., Takeuchi, K. J., Rheingold, A. L., Boyko, W. J., & Bessel, C. A. (2003). Comparison of (triphenylphosphine)ruthenium complexes containing the 2,2′:6′,2″-terpyridine (trpy) and 4,4′,4″-tri-t- butyl-2,2′:6′,2″-terpyridine (trpy*) ligands. Inorganica Chimica Acta, 355, 103-115. https://doi.org/10.1016/S0020-1693(03)00300-1

@article{5352d0b43d8343f1ad1d62c3d978446e,

title = "Comparison of (triphenylphosphine)ruthenium complexes containing the 2,2′:6′,2″-terpyridine (trpy) and 4,4′,4″-tri-t- butyl-2,2′:6′,2″-terpyridine (trpy*) ligands",

abstract = "A comparison of (triphenylphosphine)ruthenium(II) complexes containing the 2,2′:6′,2″-terpyridine (trpy) and 4,4′,4″-tri-t- butyl-2,2′:6′,2″-terpyridine (trpy*) ligands was conducted. Electronic spectra and electrochemical data readily differentiated the trans- and cis-[RuCl2(trpy or trpy*)(PPh3)] complexes. 1H, 13C and 31P NMR assignments were made for each of the isomers as well as the trans-[RuCl(trpy*) (PPh3)2](PF6) complex. Notably, the 31P chemical shift differences between the trans- and cis-[RuCl 2(trpy*)(PPh3)] complexes were not dramatic and the 1H NMR spectra were found to be the best way for determining the position of the triphenylphosphine ligand relative to the terpyridyl ligand. X-ray crystal structure analyses confirmed the structures of the cis-[RuCl 2(trpy*)(PPh3)] and trans-[RuCl(trpy*) (PPh3)2]PF6 complexes. Similar π-stacking interactions occurred between the phenyl rings and the trpy* ligand in both complexes.",

keywords = "Crystal structures, NMR spectroscopy, Ruthenium, Terpyridine complexes",

author = "Billings, \{Susan B.\} and Mock, \{Michael T.\} and Kevin Wiacek and Turner, \{Melinda B.\} and Kassel, \{W. Scott\} and Takeuchi, \{Kenneth J.\} and Rheingold, \{Arnold L.\} and Boyko, \{Walter J.\} and Bessel, \{Carol A.\}",

year = "2003",

month = nov,

day = "20",

doi = "10.1016/S0020-1693(03)00300-1",

language = "English",

volume = "355",

pages = "103--115",

journal = "Inorganica Chimica Acta",

issn = "0020-1693",

}

Billings, SB, Mock, MT, Wiacek, K, Turner, MB, Kassel, WS, Takeuchi, KJ, Rheingold, AL, Boyko, WJ & Bessel, CA 2003, 'Comparison of (triphenylphosphine)ruthenium complexes containing the 2,2′:6′,2″-terpyridine (trpy) and 4,4′,4″-tri-t- butyl-2,2′:6′,2″-terpyridine (trpy*) ligands', Inorganica Chimica Acta, vol. 355, pp. 103-115. https://doi.org/10.1016/S0020-1693(03)00300-1

Comparison of (triphenylphosphine)ruthenium complexes containing the 2,2′:6′,2″-terpyridine (trpy) and 4,4′,4″-tri-t- butyl-2,2′:6′,2″-terpyridine (trpy*) ligands. / Billings, Susan B.; Mock, Michael T.; Wiacek, Kevin et al.
In: Inorganica Chimica Acta, Vol. 355, 20.11.2003, p. 103-115.

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

TY - JOUR

T1 - Comparison of (triphenylphosphine)ruthenium complexes containing the 2,2′:6′,2″-terpyridine (trpy) and 4,4′,4″-tri-t- butyl-2,2′:6′,2″-terpyridine (trpy*) ligands

AU - Billings, Susan B.

AU - Mock, Michael T.

AU - Wiacek, Kevin

AU - Turner, Melinda B.

AU - Kassel, W. Scott

AU - Takeuchi, Kenneth J.

AU - Rheingold, Arnold L.

AU - Boyko, Walter J.

AU - Bessel, Carol A.

PY - 2003/11/20

Y1 - 2003/11/20

N2 - A comparison of (triphenylphosphine)ruthenium(II) complexes containing the 2,2′:6′,2″-terpyridine (trpy) and 4,4′,4″-tri-t- butyl-2,2′:6′,2″-terpyridine (trpy*) ligands was conducted. Electronic spectra and electrochemical data readily differentiated the trans- and cis-[RuCl2(trpy or trpy*)(PPh3)] complexes. 1H, 13C and 31P NMR assignments were made for each of the isomers as well as the trans-[RuCl(trpy*) (PPh3)2](PF6) complex. Notably, the 31P chemical shift differences between the trans- and cis-[RuCl 2(trpy*)(PPh3)] complexes were not dramatic and the 1H NMR spectra were found to be the best way for determining the position of the triphenylphosphine ligand relative to the terpyridyl ligand. X-ray crystal structure analyses confirmed the structures of the cis-[RuCl 2(trpy*)(PPh3)] and trans-[RuCl(trpy*) (PPh3)2]PF6 complexes. Similar π-stacking interactions occurred between the phenyl rings and the trpy* ligand in both complexes.

AB - A comparison of (triphenylphosphine)ruthenium(II) complexes containing the 2,2′:6′,2″-terpyridine (trpy) and 4,4′,4″-tri-t- butyl-2,2′:6′,2″-terpyridine (trpy*) ligands was conducted. Electronic spectra and electrochemical data readily differentiated the trans- and cis-[RuCl2(trpy or trpy*)(PPh3)] complexes. 1H, 13C and 31P NMR assignments were made for each of the isomers as well as the trans-[RuCl(trpy*) (PPh3)2](PF6) complex. Notably, the 31P chemical shift differences between the trans- and cis-[RuCl 2(trpy*)(PPh3)] complexes were not dramatic and the 1H NMR spectra were found to be the best way for determining the position of the triphenylphosphine ligand relative to the terpyridyl ligand. X-ray crystal structure analyses confirmed the structures of the cis-[RuCl 2(trpy*)(PPh3)] and trans-[RuCl(trpy*) (PPh3)2]PF6 complexes. Similar π-stacking interactions occurred between the phenyl rings and the trpy* ligand in both complexes.

KW - Crystal structures

KW - NMR spectroscopy

KW - Ruthenium

KW - Terpyridine complexes

UR - https://www.scopus.com/pages/publications/1042265002

U2 - 10.1016/S0020-1693(03)00300-1

DO - 10.1016/S0020-1693(03)00300-1

M3 - Article

AN - SCOPUS:1042265002

SN - 0020-1693

VL - 355

SP - 103

EP - 115

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

ER -

Comparison of (triphenylphosphine)ruthenium complexes containing the 2,2′:6′,2″-terpyridine (trpy) and 4,4′,4″-tri-t- butyl-2,2′:6′,2″-terpyridine (trpy*) ligands

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Keywords

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