Blue-Emitting 2D- and 3D-Zinc Coordination Polymers Based on Schiff-Base Amino Acid Ligands

Karakousi, Rodavgi; Tsami, Pinelopi A.; Spanoudaki, Maria-Areti I.; Dalgarno, Scott J.; Papadimitriou, Vassileios C.; Milios, Constantinos J.

doi:10.3390/chemistry5030121

i

Blue-Emitting 2D- and 3D-Zinc Coordination Polymers Based on Schiff-Base Amino Acid Ligands

2023
By Karakousi, Rodavgi ; Tsami, Pinelopi A. ; Spanoudaki, Maria-Areti I. ; ...

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Journal Title:

Chemistry
Personal Author:

Karakousi, Rodavgi ; Tsami, Pinelopi A. ; Spanoudaki, Maria-Areti I. ; Dalgarno, Scott J. ; Papadimitriou, Vassileios C. ; Milios, Constantinos J.
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; CIRES (Cooperative Institute for Research in Environmental Sciences) ; CSL (Chemical Sciences Laboratory)
Description:

The solvothermal reaction of Zn(NO3)2·4H2O, 1-OH-2-naphthaldehyde, and 2-methylalanine (mAla) in MeOH leads to the formation of complex {[ZnL1]}2n (1) (H2L1 = the Schiff-base resulting from the reaction of 1-OH-2-naphthaldehyde and mAla) in good yields. The structure of the neutral species, as determined by single-crystal crystallography, describes a two-dimensional coordination polymer, with repeating {Zn2} units bridged by syn, anti-carboxylate groups of the Schiff-base ligands. Repeating the same reaction using glycine (gly) instead of mAla leads to the formation of complex {[ZnL2]·0.33MeOH}3n (2.0.33MeOH) (H2L2 = the Schiff-base resulting from the reaction of 1-OH-2-naphthaldehyde and gly), again in good yields. Complex 2 describes a three-dimensional coordination polymer based on {Zn2} building blocks, arranged by anti, anti-carboxylate groups in a 3D motif. Complexes 1 and 2 were found to strongly emit at ~435 nm (λexc = 317 nm) both in solution and solid state, with complex 2 displaying a slightly longer lifetime of τav = 2.45 ns vs. τav = 2.02 ns for 1.
Source:

Chemistry, 5(3), 1770-1780
DOI:

https://doi.org/10.3390/chemistry5030121
ISSN:

2624-8549
Format:

pdf
Publisher:

MDPI AG
Document Type:

Journal Article
License:

https://creativecommons.org/licenses/by/4.0/
Rights Information:

CC BY
Compliance:

Library
Main Document Checksum:

urn:sha-512:05bad2dbf210a767f6b341fe596c3c8409f5346df3ce3f6fc6304793ce5c6f928c4c49a70936e1d37a7b1b77f2ab8eb3acd88908db374c0065ed4fd630ae3c65
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https://repository.library.noaa.gov/view/noaa/69604/noaa_69604_DS1.pdf
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[PDF - 12.66 MB ]

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