Abstract
| Language | English |
|---|---|
| Pages | 4348-4353 |
| Number of pages | 5 |
| Journal | Journal of the Chemical Society, Dalton Transactions |
| Volume | 2000 |
| Issue number | 23 |
| DOIs | |
| Publication status | Published - 16 Nov 2000 |
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Keywords
- phosphonates
- molar crystallographic
- molecular channels
- chelation
- nitrile unit
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Lithiated alpha-cyanophosphonates: self-assembly of two-dimensional molecular sheets composed of interconnected twenty-four membered rings. / Henderson, K.W.; Kennedy, A.R.; McKeown, A.E.; Strachan, D.
In: Journal of the Chemical Society, Dalton Transactions, Vol. 2000, No. 23, 16.11.2000, p. 4348-4353.Research output: Contribution to journal › Article
TY - JOUR
T1 - Lithiated alpha-cyanophosphonates: self-assembly of two-dimensional molecular sheets composed of interconnected twenty-four membered rings
AU - Henderson, K.W.
AU - Kennedy, A.R.
AU - McKeown, A.E.
AU - Strachan, D.
PY - 2000/11/16
Y1 - 2000/11/16
N2 - Reaction of the phosphonates (RO)2P(O)CH2CN (R = Et I or PriII) with one molar equivalent of LiNPri2 in THF gave the metallated complexes [(RO)2P(O)CHCNLi·THF] (R = Et 1 or Pri2). Crystallographic analyses of them reveal that they form dimeric Li2(O=P)2 units, which further aggregate through inter-dimer association via the nitrile of the phosphonate to form cross-linked, polymeric network structures. These sheets align in the crystals to form a patchwork arrangement of molecular channels. The carbanionic centres of the phosphonates are devoid of Li-C contacts and almost perfectly planar. In solution, the dimeric units most likely remain intact but the nitrile is involved in chelation to a metal centre via intra-dimer association. Theoretical calculations show that chelation of the nitrile unit is a viable mode of bonding.
AB - Reaction of the phosphonates (RO)2P(O)CH2CN (R = Et I or PriII) with one molar equivalent of LiNPri2 in THF gave the metallated complexes [(RO)2P(O)CHCNLi·THF] (R = Et 1 or Pri2). Crystallographic analyses of them reveal that they form dimeric Li2(O=P)2 units, which further aggregate through inter-dimer association via the nitrile of the phosphonate to form cross-linked, polymeric network structures. These sheets align in the crystals to form a patchwork arrangement of molecular channels. The carbanionic centres of the phosphonates are devoid of Li-C contacts and almost perfectly planar. In solution, the dimeric units most likely remain intact but the nitrile is involved in chelation to a metal centre via intra-dimer association. Theoretical calculations show that chelation of the nitrile unit is a viable mode of bonding.
KW - phosphonates
KW - molar crystallographic
KW - molecular channels
KW - chelation
KW - nitrile unit
UR - http://dx.doi.org/10.1039/b007038f
U2 - 10.1039/b007038f
DO - 10.1039/b007038f
M3 - Article
VL - 2000
SP - 4348
EP - 4353
JO - Journal of the Chemical Society, Dalton Transactions
T2 - Journal of the Chemical Society, Dalton Transactions
JF - Journal of the Chemical Society, Dalton Transactions
SN - 0300-9246
IS - 23
ER -