Pair of chiral molecular ladders and successive hydration in single-crystal-to-single-crystal mode
Unusual successive two-step crystallization of a pair of chiral coordination polymers was carried out. Self-assembly of Zn(NO 3 ) 2 with a pair of chiral C 3 -symmetric tridentate N-donor ligands (1 S ,2 R -L and 1 R ,2 S -L) produces single crystals consisting of chiral enantiomeric 1D ladder coord...
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Veröffentlicht in: | CrystEngComm 2021-12, Vol.23 (48), p.8546-8552 |
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Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Unusual successive two-step crystallization of a pair of chiral coordination polymers was carried out. Self-assembly of Zn(NO
3
)
2
with a pair of chiral
C
3
-symmetric tridentate N-donor ligands (1
S
,2
R
-L and 1
R
,2
S
-L) produces single crystals consisting of chiral enantiomeric 1D ladder coordination polymers, CH
2
Cl
2
·2CH
3
CN@[Zn
3
(NO
3
)
6
(1
S
,2
R
-L)
2
] and CH
2
Cl
2
·2CH
3
CN@[Zn
3
(NO
3
)
6
(1
R
,2
S
-L)
2
], after which the single crystals are transformed into new crystals in their hydrated forms, 2CH
3
CN@[Zn
3
(NO
3
)
6
(1
S
,2
R
-L)
2
(H
2
O)
2
] and 2CH
3
CN@[Zn
3
(NO
3
)
6
(1
R
,2
S
-L)
2
(H
2
O)
2
], respectively, under the moisture condition, in the single-crystal-to-single-crystal (SCSC) mode. The crystals consist of hexagonally packed chiral 1D coordination polymers in an enantiomeric arrangement, and their hydration shows a subtle difference depending on the chirality.
Self-assembly of Zn(NO
3
)
2
with a pair of new tridentate chiral Ls produced a pair of chiral ladder-type 1D coordination polymers, where crystals were transformed into different hydrated products of zigzag 1Ds depending on chirality in the SCSC mode. |
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ISSN: | 1466-8033 1466-8033 |
DOI: | 10.1039/d1ce01332g |