Abstract
Photophysical studies of naphthalene confirm that aromatic molecules tend to aggregate within cation exchanged Y zeolites. Ground-state aggregation is traced to the presence of cation-aromatic π-interaction. Solvents that can coordinate to the cation 'turn off' the cation-aromatic interaction, and consequently aggregation does not occur in zeolites that are impregnated with the above solvents. The solvent that exhibits a maximum in such an effect is water. MP2 calculations on cation-benzene dimer indicate that cation - π-interaction results in stabilization of the π-stacked benzene dimer. Results of MP2 calculations are consistent with the formation of ground-state π-stacked aggregates of naphthalene molecules within Y zeolites.
| Original language | English |
|---|---|
| Pages (from-to) | 4912-4921 |
| Number of pages | 10 |
| Journal | Langmuir |
| Volume | 16 |
| Issue number | 11 |
| DOIs | |
| State | Published - May 30 2000 |
| Externally published | Yes |
Fingerprint
ASJC Scopus subject areas
- Colloid and Surface Chemistry
- Physical and Theoretical Chemistry
Cite this
Cation-π-interaction promoted aggregation of aromatic molecules and energy transfer within Y zeolites. / Thomas, K. J.; Sunoj, R. B.; Chandrasekhar, J.; Ramamurthy, Vaidhyanathan.
In: Langmuir, Vol. 16, No. 11, 30.05.2000, p. 4912-4921.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Cation-π-interaction promoted aggregation of aromatic molecules and energy transfer within Y zeolites
AU - Thomas, K. J.
AU - Sunoj, R. B.
AU - Chandrasekhar, J.
AU - Ramamurthy, Vaidhyanathan
PY - 2000/5/30
Y1 - 2000/5/30
N2 - Photophysical studies of naphthalene confirm that aromatic molecules tend to aggregate within cation exchanged Y zeolites. Ground-state aggregation is traced to the presence of cation-aromatic π-interaction. Solvents that can coordinate to the cation 'turn off' the cation-aromatic interaction, and consequently aggregation does not occur in zeolites that are impregnated with the above solvents. The solvent that exhibits a maximum in such an effect is water. MP2 calculations on cation-benzene dimer indicate that cation - π-interaction results in stabilization of the π-stacked benzene dimer. Results of MP2 calculations are consistent with the formation of ground-state π-stacked aggregates of naphthalene molecules within Y zeolites.
AB - Photophysical studies of naphthalene confirm that aromatic molecules tend to aggregate within cation exchanged Y zeolites. Ground-state aggregation is traced to the presence of cation-aromatic π-interaction. Solvents that can coordinate to the cation 'turn off' the cation-aromatic interaction, and consequently aggregation does not occur in zeolites that are impregnated with the above solvents. The solvent that exhibits a maximum in such an effect is water. MP2 calculations on cation-benzene dimer indicate that cation - π-interaction results in stabilization of the π-stacked benzene dimer. Results of MP2 calculations are consistent with the formation of ground-state π-stacked aggregates of naphthalene molecules within Y zeolites.
UR - http://www.scopus.com/inward/record.url?scp=0033730283&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0033730283&partnerID=8YFLogxK
U2 - 10.1021/la991654s
DO - 10.1021/la991654s
M3 - Article
AN - SCOPUS:0033730283
VL - 16
SP - 4912
EP - 4921
JO - Langmuir
JF - Langmuir
SN - 0743-7463
IS - 11
ER -