Loading…
New organo- and amidozinc derivatives of primary amines
Five new zinc derivatives of primary amines [R′ZnN(H)R] 2 [R = SiPh 3 , R′ = Me ( 1 ), N(SiMe 3 ) 2 ( 4 ); R = Si(NMe 2 ) 3 , R′ = Me ( 2 ), Et ( 3 ), N(SiMe 3 ) 2 ( 5 )] have been synthesised by reaction of R′ 2 Zn and H 2 NR. All five species are dimers in which the N-H groups are disposed in a tr...
Saved in:
| Published in: | Dalton transactions : an international journal of inorganic chemistry 2014-01, Vol.43 (2), p.859-864 |
|---|---|
| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
| Citations: | Items that this one cites Items that cite this one |
| Online Access: | Get full text |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Five new zinc derivatives of primary amines [R′ZnN(H)R]
2
[R = SiPh
3
, R′ = Me (
1
), N(SiMe
3
)
2
(
4
); R = Si(NMe
2
)
3
, R′ = Me (
2
), Et (
3
), N(SiMe
3
)
2
(
5
)] have been synthesised by reaction of R′
2
Zn and H
2
NR. All five species are dimers in which the N-H groups are disposed in a
trans
manner about a central Zn
2
N
2
ring. In
1
and
4
the coordination at zinc is trigonal planar, while in
2
,
3
,
5
the zinc is in a distorted tetrahedral environment due to additional Me
2
N: → Zn coordination from one SiNMe
2
group.
5
was found to be generally resistant to NH deprotonation by bases such as MN(SiMe
3
)
2
(M = Li, K) or Zn[N(SiMe
3
)
2
]
2
, but reacts with Sn[N(SiMe
3
)
2
]
2
to give the tin-free, tetrameric mixed zinc-imido/amido species, [{(Me
3
Si)
2
N}{(Me
2
N)
3
SiN(H)}{(Me
2
N)
3
SiN}Zn
2
]
2
(
6
) which can be viewed as part of a hexameric Zn
6
N
6
drum which has lost a Zn
2
N
2
ring.
The zinc amide dimers, [R′ZnN(H)R]
2
[R = SiPh
3
, R′ = Me (
1
), N(SiMe
3
)
2
(
4
); R = Si(NMe
2
)
3
, R′ = Me (
2
), Et (
3
), N(SiMe
3
)
2
(
5
)], have been synthesised and their molecular structures determined by single crystal X-ray diffraction. The unusual tetrameric imido/amido zinc complex, [{(Me
3
Si)
2
N}{(Me
2
N)
3
SiN(H)}{(Me
2
N)
3
SiN}Zn
2
]
2
(
6
) is also reported. |
|---|---|
| ISSN: | 1477-9226 1477-9234 |
| DOI: | 10.1039/c3dt52602j |