Abstract
Hydrothermal reaction of fumaric acid and isonicotinic acid in presence of trace quantity of nitric acid produced an unprecedented two-dimensional coordination polymer Eu(OOC-C5H4N-CH2-CH2-COO)(OOC-COO)·2H2O containing in situ formed new ligands, 3-(4-pyridinecarboxylate)propionic acid (inpro) and oxalate (ox) moieties. The formation of inpro ligand from isonicotinic acid and fumaric acid is presumably through dehydration between 3-hydroxylpropionic acid and 4-carboxypyridinium moieties present under the above conditions, and the oxalate formation due to the reductive coupling of CO2 radicals generated from 2-hydroxysuccinic acid through C-C bond cleavage. The compound crystallizes in monoclinic P21/C space group and contains nine-coordinated Eu3+ ion having a distorted mono-capped square-antiprismatic geometry. While two chelatively bridging oxalate moieties coordinating through four of their O atoms lead to the formation of zigzag Eu(III)-oxalate chains, four uniquely bridging anionic inpro ligands which coordinate through five O centers altogether make the system take an overall two-dimensional network arrangement. Upon excitation at 359 nm the compound exhibits interesting luminescent properties in solid state with several intense bands in the visible region; the most intense and sharp emission being in the red region at 615 nm due to 5D0 → 7F2 transition, facilitated by the low-symmetry coordination environment around Eu3+ ion by the ligands.
| Original language | English |
|---|---|
| Pages (from-to) | 1065-1070 |
| Number of pages | 6 |
| Journal | Solid State Sciences |
| Volume | 11 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Jun 2009 |
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Keywords
- 3-(4-Pyridinecarboxylate)propionic acid
- Crystal structure
- Eu(III) coordination polymer
- In situ ligand transformation
- Oxalate
- Solid-state luminescence
ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics
Cite this
An unprecedented two-dimensional Eu(III) coordination polymer Eu(OOC-C5H4N-CH2-CH2-COO)(OOC-COO)·2H2O formed by in situ reaction of fumaric acid and isonicotinic acid : Crystal structure and luminescent properties. / Ma, De Yun; Zeng, He Ping; Li, Ying Wei; Li, Jing.
In: Solid State Sciences, Vol. 11, No. 6, 06.2009, p. 1065-1070.Research output: Contribution to journal › Article
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TY - JOUR
T1 - An unprecedented two-dimensional Eu(III) coordination polymer Eu(OOC-C5H4N-CH2-CH2-COO)(OOC-COO)·2H2O formed by in situ reaction of fumaric acid and isonicotinic acid
T2 - Crystal structure and luminescent properties
AU - Ma, De Yun
AU - Zeng, He Ping
AU - Li, Ying Wei
AU - Li, Jing
PY - 2009/6
Y1 - 2009/6
N2 - Hydrothermal reaction of fumaric acid and isonicotinic acid in presence of trace quantity of nitric acid produced an unprecedented two-dimensional coordination polymer Eu(OOC-C5H4N-CH2-CH2-COO)(OOC-COO)·2H2O containing in situ formed new ligands, 3-(4-pyridinecarboxylate)propionic acid (inpro) and oxalate (ox) moieties. The formation of inpro ligand from isonicotinic acid and fumaric acid is presumably through dehydration between 3-hydroxylpropionic acid and 4-carboxypyridinium moieties present under the above conditions, and the oxalate formation due to the reductive coupling of CO2 radicals generated from 2-hydroxysuccinic acid through C-C bond cleavage. The compound crystallizes in monoclinic P21/C space group and contains nine-coordinated Eu3+ ion having a distorted mono-capped square-antiprismatic geometry. While two chelatively bridging oxalate moieties coordinating through four of their O atoms lead to the formation of zigzag Eu(III)-oxalate chains, four uniquely bridging anionic inpro ligands which coordinate through five O centers altogether make the system take an overall two-dimensional network arrangement. Upon excitation at 359 nm the compound exhibits interesting luminescent properties in solid state with several intense bands in the visible region; the most intense and sharp emission being in the red region at 615 nm due to 5D0 → 7F2 transition, facilitated by the low-symmetry coordination environment around Eu3+ ion by the ligands.
AB - Hydrothermal reaction of fumaric acid and isonicotinic acid in presence of trace quantity of nitric acid produced an unprecedented two-dimensional coordination polymer Eu(OOC-C5H4N-CH2-CH2-COO)(OOC-COO)·2H2O containing in situ formed new ligands, 3-(4-pyridinecarboxylate)propionic acid (inpro) and oxalate (ox) moieties. The formation of inpro ligand from isonicotinic acid and fumaric acid is presumably through dehydration between 3-hydroxylpropionic acid and 4-carboxypyridinium moieties present under the above conditions, and the oxalate formation due to the reductive coupling of CO2 radicals generated from 2-hydroxysuccinic acid through C-C bond cleavage. The compound crystallizes in monoclinic P21/C space group and contains nine-coordinated Eu3+ ion having a distorted mono-capped square-antiprismatic geometry. While two chelatively bridging oxalate moieties coordinating through four of their O atoms lead to the formation of zigzag Eu(III)-oxalate chains, four uniquely bridging anionic inpro ligands which coordinate through five O centers altogether make the system take an overall two-dimensional network arrangement. Upon excitation at 359 nm the compound exhibits interesting luminescent properties in solid state with several intense bands in the visible region; the most intense and sharp emission being in the red region at 615 nm due to 5D0 → 7F2 transition, facilitated by the low-symmetry coordination environment around Eu3+ ion by the ligands.
KW - 3-(4-Pyridinecarboxylate)propionic acid
KW - Crystal structure
KW - Eu(III) coordination polymer
KW - In situ ligand transformation
KW - Oxalate
KW - Solid-state luminescence
UR - http://www.scopus.com/inward/record.url?scp=67349192955&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67349192955&partnerID=8YFLogxK
U2 - 10.1016/j.solidstatesciences.2009.02.009
DO - 10.1016/j.solidstatesciences.2009.02.009
M3 - Article
AN - SCOPUS:67349192955
VL - 11
SP - 1065
EP - 1070
JO - Solid State Sciences
JF - Solid State Sciences
SN - 1293-2558
IS - 6
ER -