Details
| Original language | English |
|---|---|
| Pages (from-to) | 3200-3205 |
| Number of pages | 6 |
| Journal | Crystal Growth and Design |
| Volume | 8 |
| Issue number | 9 |
| Publication status | Published - 26 Jul 2008 |
Abstract
Two new coordination polymers, [Zn(bdc)(bimx)] · 1.5H2O (1) and [Zn2(bdc)2(bimx)] · (H2bdc) (2) (H2bdc = 1,4-benzenedicarboxylic acid, bimx = 1,4-bis(imidazol-1- ylmethyl)-2,3,5,6-tetramethylbenzene), containing both rigid (bdc) and flexible (bimx) linkers were synthesized in aqueous media (hydrothermal conditions) and characterized by single-crystal and powder X-ray diffraction, FT-IR spectroscopy, and thermogravimetric/differential thermal analysis. While 1 is an essentially dense material consisting of stacked composite layers each being built from two mutually interpenetrating two-dimensional square-grid frameworks, 2 possesses a single (non-interpenetrated) three-dimensional open framework (α-Po net) with wide channels that are filled with H2bdc template molecules. Formally, ring-penetrating bdc linkers are replaced by H2bdc molecules when going from the structure of 1 to the structure of 2. The occluded H2bdc molecules exhibit distinct interactions with the framework and can thus be regarded as template molecules or structure-directing agents. In line with these host-guest interactions, attempts to remove the template from as-synthesized 2 with retention of the framework structure by heat treatment or liquid exchange were not successful. These results give new impetus, however, to the recently discussed idea to use structure-directing effects, as they occur in zeolite synthesis, for the preparation of metal-organic framework materials.
ASJC Scopus subject areas
- Chemistry(all)
- General Chemistry
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Crystal Growth and Design, Vol. 8, No. 9, 26.07.2008, p. 3200-3205.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Two zinc(II) coordination polymers constructed with rigid 1,4-benzenedicarboxylate and flexible 1,4-bis(imidazol-1-ylmethyl)-2,3,5,6- tetramethylbenzene linkers
T2 - From Interpenetrating layers to templated 3D frameworks
AU - Schaate, Andreas
AU - Klingelhöfer, Stefan
AU - Behrens, Peter
AU - Wiebcke, Michael
PY - 2008/7/26
Y1 - 2008/7/26
N2 - Two new coordination polymers, [Zn(bdc)(bimx)] · 1.5H2O (1) and [Zn2(bdc)2(bimx)] · (H2bdc) (2) (H2bdc = 1,4-benzenedicarboxylic acid, bimx = 1,4-bis(imidazol-1- ylmethyl)-2,3,5,6-tetramethylbenzene), containing both rigid (bdc) and flexible (bimx) linkers were synthesized in aqueous media (hydrothermal conditions) and characterized by single-crystal and powder X-ray diffraction, FT-IR spectroscopy, and thermogravimetric/differential thermal analysis. While 1 is an essentially dense material consisting of stacked composite layers each being built from two mutually interpenetrating two-dimensional square-grid frameworks, 2 possesses a single (non-interpenetrated) three-dimensional open framework (α-Po net) with wide channels that are filled with H2bdc template molecules. Formally, ring-penetrating bdc linkers are replaced by H2bdc molecules when going from the structure of 1 to the structure of 2. The occluded H2bdc molecules exhibit distinct interactions with the framework and can thus be regarded as template molecules or structure-directing agents. In line with these host-guest interactions, attempts to remove the template from as-synthesized 2 with retention of the framework structure by heat treatment or liquid exchange were not successful. These results give new impetus, however, to the recently discussed idea to use structure-directing effects, as they occur in zeolite synthesis, for the preparation of metal-organic framework materials.
AB - Two new coordination polymers, [Zn(bdc)(bimx)] · 1.5H2O (1) and [Zn2(bdc)2(bimx)] · (H2bdc) (2) (H2bdc = 1,4-benzenedicarboxylic acid, bimx = 1,4-bis(imidazol-1- ylmethyl)-2,3,5,6-tetramethylbenzene), containing both rigid (bdc) and flexible (bimx) linkers were synthesized in aqueous media (hydrothermal conditions) and characterized by single-crystal and powder X-ray diffraction, FT-IR spectroscopy, and thermogravimetric/differential thermal analysis. While 1 is an essentially dense material consisting of stacked composite layers each being built from two mutually interpenetrating two-dimensional square-grid frameworks, 2 possesses a single (non-interpenetrated) three-dimensional open framework (α-Po net) with wide channels that are filled with H2bdc template molecules. Formally, ring-penetrating bdc linkers are replaced by H2bdc molecules when going from the structure of 1 to the structure of 2. The occluded H2bdc molecules exhibit distinct interactions with the framework and can thus be regarded as template molecules or structure-directing agents. In line with these host-guest interactions, attempts to remove the template from as-synthesized 2 with retention of the framework structure by heat treatment or liquid exchange were not successful. These results give new impetus, however, to the recently discussed idea to use structure-directing effects, as they occur in zeolite synthesis, for the preparation of metal-organic framework materials.
UR - http://www.scopus.com/inward/record.url?scp=61549089981&partnerID=8YFLogxK
U2 - 10.1021/cg701041k
DO - 10.1021/cg701041k
M3 - Article
AN - SCOPUS:61549089981
VL - 8
SP - 3200
EP - 3205
JO - Crystal Growth and Design
JF - Crystal Growth and Design
SN - 1528-7483
IS - 9
ER -