Wire like diplatinum, triplatinum, and tetraplatinum complexes featuring X[PtCCCCCCCC]mPtX segments; Iterative syntheses and functionalization for measurements of single molecule properties

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autorinnen und Autoren: Zheng Q, Schneider JF, Amini H, Hampel F, Gladysz JA
Zeitschrift: Dalton Transactions
Jahr der Veröffentlichung: 2019
Band: 48
Heftnummer: 17
Seitenbereich: 5800-5816
ISSN: 1477-9226
eISSN: 1477-9234


Abstract

Reaction of (p-tol
3
P)
2
PtCl
2
and Me
3
Sn(CC)
2
SiMe
3
(1:1/THF/reflux) gives monosubstituted trans-Cl(p-tol
3
P)
2
Pt(CC)
2
SiMe
3
(63%), which with wet n-Bu
4
N
+
F
-
yields trans-Cl(p-tol
3
P)
2
Pt(CC)
2
H (2, 96%). Hay oxidative homocoupling (O
2
/CuCl/TMEDA) gives all-trans-Cl(p-tol
3
P)
2
Pt(CC)
4
Pt(Pp-tol
3
)
2
Cl (3, 68%). Reaction of 3 and Me
3
Sn(CC)
2
SiMe
3
(1:1/rt) affords monosubstituted all-trans-Cl(p-tol
3
P)
2
Pt(CC)
4
Pt(Pp-tol
3
)
2
(CC)
2
SiMe
3
(46%), which is converted by a similar desilylation/homocoupling sequence to all-trans-Cl[(p-tol
3
P)
2
Pt(CC)
4
]
3
Pt(Pp-tol
3
)
2
Cl (7; 79%). Reaction of (p-tol
3
P)
2
PtCl
2
and excess H(CC)
2
SiMe
3
(HNEt
2
/cat. CuI) gives trans-Me
3
Si(CC)
2
Pt(Pp-tol
3
)
2
(CC)
2
SiMe
3
(78%), which with wet n-Bu
4
N
+
F
-
affords trans-H(CC)
2
Pt(Pp-tol
3
)
2
(CC)
2
H (96%). Hay oxidative cross coupling with 2 (1:4) gives all-trans-Cl[(p-tol
3
P)
2
Pt(CC)
4
]
2
Pt(Pp-tol
3
)
2
Cl (10, 36%) along with homocoupling product 3 (33%). Reaction of 3 and Me
3
Sn(CC)
2
SiMe
3
(1:2/rt) yields all-trans-Me
3
Si(CC)
2
(p-tol
3
P)
2
Pt(CC)
4
Pt(Pp-tol
3
)
2
(CC)
2
SiMe
3
(17, 77%), which with wet n-Bu
4
N
+
F
-
gives all-trans-H(CC)
2
(p-tol
3
P)
2
Pt(CC)
4
Pt(Pp-tol
3
)
2
(CC)
2
H (96%). Reaction of 3 and excess Me
3
P gives all-trans-Cl(Me
3
P)
2
Pt(CC)
4
Pt(PMe
3
)
2
Cl (4, 86%). A model reaction of trans-(p-tol)(p-tol
3
P)
2
PtCl and KSAc yields trans-(p-tol)(p-tol
3
P)
2
PtSAc (12, 75%). Similar reactions of 3, 7, 10, and 4 give all-trans-AcS[(R
3
P)
2
Pt(CC)
4
]
n
Pt(PR
3
)
2
SAc (76-91%). The crystal structures of 3, 17, and 12 are determined. The first exhibits a chlorine-chlorine distance of 17.42 Å; those in 10 and 7 are estimated as 30.3 Å and 43.1 Å.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Hampel, Frank Dr.
Lehrstuhl für Organische Chemie I


Einrichtungen weiterer Autorinnen und Autoren

Texas A&M University


Zitierweisen

APA:
Zheng, Q., Schneider, J.F., Amini, H., Hampel, F., & Gladysz, J.A. (2019). Wire like diplatinum, triplatinum, and tetraplatinum complexes featuring X[PtCCCCCCCC]mPtX segments; Iterative syntheses and functionalization for measurements of single molecule properties. Dalton Transactions, 48(17), 5800-5816. https://dx.doi.org/10.1039/c9dt00870e

MLA:
Zheng, Qinglin, et al. "Wire like diplatinum, triplatinum, and tetraplatinum complexes featuring X[PtCCCCCCCC]mPtX segments; Iterative syntheses and functionalization for measurements of single molecule properties." Dalton Transactions 48.17 (2019): 5800-5816.

BibTeX: 

Zuletzt aktualisiert 2019-24-05 um 16:08