Abstract
A series of novel Cu(I) N,S-heterocyclic carbene (NSHC) complexes [Cu(μ-Br)(NSHC)]2, [Cu(μ-X)(NSHC)]4 (X = Br or I), [(NSHC)2Cu(μ-Br)2Cu(NSHC)], and [(NSHC) 2CuBr] have been isolated from in situ generated CuOtBu and N-substituted benzothiazolium halides and characterized by X-ray crystallography. Five structural motifs were observed, viz. MxL y where x:y = 2:2, 4:4, 2:3, 1:2 and 2:4, with Cu⋯Cu separation traversing over a wide range of 2.5626(7) to 3.4725(7) Å distances. A preliminary investigation of the catalytic activity of these compounds indicated that the unusual mononuclear complex 6 [(NSHC) 2CuBr] is an active catalyst for the Huisgen 1,3-dipolar cycloaddition of azide and alkynes while complexes 1-5 and 7 were marginally less active.
| Original language | English |
|---|---|
| Pages (from-to) | 1305-1312 |
| Number of pages | 8 |
| Journal | Dalton Transactions |
| Volume | 43 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 21 Jan 2014 |
| Externally published | Yes |
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Stoichiometric sensitivity and structural diversity in click-active copper(I) N,S-heterocyclic carbene complexes. / Han, Xiaoyan; Weng, Zhiqiang; Young, David James; Jin, Guo Xin; Andy Hor, T. S.
In: Dalton Transactions, Vol. 43, No. 3, 21.01.2014, p. 1305-1312.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Stoichiometric sensitivity and structural diversity in click-active copper(I) N,S-heterocyclic carbene complexes
AU - Han, Xiaoyan
AU - Weng, Zhiqiang
AU - Young, David James
AU - Jin, Guo Xin
AU - Andy Hor, T. S.
PY - 2014/1/21
Y1 - 2014/1/21
N2 - A series of novel Cu(I) N,S-heterocyclic carbene (NSHC) complexes [Cu(μ-Br)(NSHC)]2, [Cu(μ-X)(NSHC)]4 (X = Br or I), [(NSHC)2Cu(μ-Br)2Cu(NSHC)], and [(NSHC) 2CuBr] have been isolated from in situ generated CuOtBu and N-substituted benzothiazolium halides and characterized by X-ray crystallography. Five structural motifs were observed, viz. MxL y where x:y = 2:2, 4:4, 2:3, 1:2 and 2:4, with Cu⋯Cu separation traversing over a wide range of 2.5626(7) to 3.4725(7) Å distances. A preliminary investigation of the catalytic activity of these compounds indicated that the unusual mononuclear complex 6 [(NSHC) 2CuBr] is an active catalyst for the Huisgen 1,3-dipolar cycloaddition of azide and alkynes while complexes 1-5 and 7 were marginally less active.
AB - A series of novel Cu(I) N,S-heterocyclic carbene (NSHC) complexes [Cu(μ-Br)(NSHC)]2, [Cu(μ-X)(NSHC)]4 (X = Br or I), [(NSHC)2Cu(μ-Br)2Cu(NSHC)], and [(NSHC) 2CuBr] have been isolated from in situ generated CuOtBu and N-substituted benzothiazolium halides and characterized by X-ray crystallography. Five structural motifs were observed, viz. MxL y where x:y = 2:2, 4:4, 2:3, 1:2 and 2:4, with Cu⋯Cu separation traversing over a wide range of 2.5626(7) to 3.4725(7) Å distances. A preliminary investigation of the catalytic activity of these compounds indicated that the unusual mononuclear complex 6 [(NSHC) 2CuBr] is an active catalyst for the Huisgen 1,3-dipolar cycloaddition of azide and alkynes while complexes 1-5 and 7 were marginally less active.
UR - http://www.scopus.com/inward/record.url?scp=84890444137&partnerID=8YFLogxK
U2 - 10.1039/c3dt52059e
DO - 10.1039/c3dt52059e
M3 - Article
VL - 43
SP - 1305
EP - 1312
JO - Dalton Transactions: an international journal of inorganic chemistry
JF - Dalton Transactions: an international journal of inorganic chemistry
SN - 1477-9226
IS - 3
ER -