The role of alkali metal cations in MMA polymerization initiated by neutral and anionic allyl lanthanide complexes

Cheslan K. Simpson; Rosemary E. White; Christin N. Carlson; Debra A. Wrobleski; Christopher J. Kuehl; Teresa A. Croce; Ian M. Steele; Brian L. Scott; Victor G. Young; Timothy P. Hanusa; Alfred P. Sattelberger; Kevin D. John

doi:10.1021/om050098w

The role of alkali metal cations in MMA polymerization initiated by neutral and anionic allyl lanthanide complexes

Cheslan K. Simpson, Rosemary E. White, Christin N. Carlson, Debra A. Wrobleski, Christopher J. Kuehl, Teresa A. Croce, Ian M. Steele, Brian L. Scott, Victor G. Young, Timothy P. Hanusa, Alfred P. Sattelberger, Kevin D. John

Chemistry (Twin Cities)

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

58 Scopus citations

Abstract

Reaction of 2 or 3 equiv of potassium 1,3-bis(trimethylsilyl)allyl (K[1,3-(SiMe ₃) ₂C ₃H ₃] = K[A′]) with the triflate salts of Ce, Nd, Eu, Tb, and Yb gives the corresponding neutral bis-(Yb, Eu) and tris-(Ce, Nd, Tb) allyl lanthanide complexes in yields ranging from 40 to 80%. These complexes, which have been crystallographically characterized, initiate the polymerization of methyl methacrylate (MMA), but with poor turnover frequencies when compared with the corresponding salt complexes of the type K[LnA′ ₃]. K[A′] itself initiates MMA polymerization, however, and its presence as an ion-pair in the salt complexes may contribute to the activity of heterometallic lanthanide catalysts.

Original language	English (US)
Pages (from-to)	3685-3691
Number of pages	7
Journal	Organometallics
Volume	24
Issue number	15
DOIs	https://doi.org/10.1021/om050098w
State	Published - Jul 18 2005

Access

10.1021/om050098w

OpenUrl availability

Full text

Cite this

Simpson, C. K., White, R. E., Carlson, C. N., Wrobleski, D. A., Kuehl, C. J., Croce, T. A., Steele, I. M., Scott, B. L., Young, V. G., Hanusa, T. P., Sattelberger, A. P., & John, K. D. (2005). The role of alkali metal cations in MMA polymerization initiated by neutral and anionic allyl lanthanide complexes. Organometallics, 24(15), 3685-3691. https://doi.org/10.1021/om050098w

@article{797a2cddefa84995a9c6e959cb09a630,

title = "The role of alkali metal cations in MMA polymerization initiated by neutral and anionic allyl lanthanide complexes",

abstract = "Reaction of 2 or 3 equiv of potassium 1,3-bis(trimethylsilyl)allyl (K[1,3-(SiMe 3) 2C 3H 3] = K[A′]) with the triflate salts of Ce, Nd, Eu, Tb, and Yb gives the corresponding neutral bis-(Yb, Eu) and tris-(Ce, Nd, Tb) allyl lanthanide complexes in yields ranging from 40 to 80%. These complexes, which have been crystallographically characterized, initiate the polymerization of methyl methacrylate (MMA), but with poor turnover frequencies when compared with the corresponding salt complexes of the type K[LnA′ 3]. K[A′] itself initiates MMA polymerization, however, and its presence as an ion-pair in the salt complexes may contribute to the activity of heterometallic lanthanide catalysts.",

author = "Simpson, {Cheslan K.} and White, {Rosemary E.} and Carlson, {Christin N.} and Wrobleski, {Debra A.} and Kuehl, {Christopher J.} and Croce, {Teresa A.} and Steele, {Ian M.} and Scott, {Brian L.} and Young, {Victor G.} and Hanusa, {Timothy P.} and Sattelberger, {Alfred P.} and John, {Kevin D.}",

year = "2005",

month = jul,

day = "18",

doi = "10.1021/om050098w",

language = "English (US)",

volume = "24",

pages = "3685--3691",

journal = "Organometallics",

issn = "0276-7333",

publisher = "American Chemical Society",

number = "15",

}

TY - JOUR

T1 - The role of alkali metal cations in MMA polymerization initiated by neutral and anionic allyl lanthanide complexes

AU - Simpson, Cheslan K.

AU - White, Rosemary E.

AU - Carlson, Christin N.

AU - Wrobleski, Debra A.

AU - Kuehl, Christopher J.

AU - Croce, Teresa A.

AU - Steele, Ian M.

AU - Scott, Brian L.

AU - Young, Victor G.

AU - Hanusa, Timothy P.

AU - Sattelberger, Alfred P.

AU - John, Kevin D.

PY - 2005/7/18

Y1 - 2005/7/18

N2 - Reaction of 2 or 3 equiv of potassium 1,3-bis(trimethylsilyl)allyl (K[1,3-(SiMe 3) 2C 3H 3] = K[A′]) with the triflate salts of Ce, Nd, Eu, Tb, and Yb gives the corresponding neutral bis-(Yb, Eu) and tris-(Ce, Nd, Tb) allyl lanthanide complexes in yields ranging from 40 to 80%. These complexes, which have been crystallographically characterized, initiate the polymerization of methyl methacrylate (MMA), but with poor turnover frequencies when compared with the corresponding salt complexes of the type K[LnA′ 3]. K[A′] itself initiates MMA polymerization, however, and its presence as an ion-pair in the salt complexes may contribute to the activity of heterometallic lanthanide catalysts.

AB - Reaction of 2 or 3 equiv of potassium 1,3-bis(trimethylsilyl)allyl (K[1,3-(SiMe 3) 2C 3H 3] = K[A′]) with the triflate salts of Ce, Nd, Eu, Tb, and Yb gives the corresponding neutral bis-(Yb, Eu) and tris-(Ce, Nd, Tb) allyl lanthanide complexes in yields ranging from 40 to 80%. These complexes, which have been crystallographically characterized, initiate the polymerization of methyl methacrylate (MMA), but with poor turnover frequencies when compared with the corresponding salt complexes of the type K[LnA′ 3]. K[A′] itself initiates MMA polymerization, however, and its presence as an ion-pair in the salt complexes may contribute to the activity of heterometallic lanthanide catalysts.

UR - http://www.scopus.com/inward/record.url?scp=22944473969&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=22944473969&partnerID=8YFLogxK

U2 - 10.1021/om050098w

DO - 10.1021/om050098w

M3 - Article

AN - SCOPUS:22944473969

SN - 0276-7333

VL - 24

SP - 3685

EP - 3691

JO - Organometallics

JF - Organometallics

IS - 15

ER -

The role of alkali metal cations in MMA polymerization initiated by neutral and anionic allyl lanthanide complexes

Abstract

Access

OpenUrl availability

Other files and links

Fingerprint

Cite this