Zinc and Cadmium Complexes of Pyridinemethanol Carboxylates: Metal Carboxylate Zwitterions and Metal–Organic Frameworks

Yan Liu; Shi Xin Lin; Ru Jie Niu; Quan Liu; Wen Hua Zhang; David J. Young

doi:10.1002/cplu.202000175

Zinc and Cadmium Complexes of Pyridinemethanol Carboxylates: Metal Carboxylate Zwitterions and Metal–Organic Frameworks

Yan Liu, Shi Xin Lin, Ru Jie Niu, Quan Liu, Wen Hua Zhang, David J. Young

Research output: Contribution to journal › Article › peer-review

Abstract

The heterofunctional lactone furo[3,4-b]pyridin-5(7H)-one (L₁) undergoes a coordination-induced ring-opening reaction with Zn(NO₃)₂ ⋅ 6H₂O to yield the zwitterionic [Zn(L₁′)₂(H₂O)₂] (1, L₁′=2-(hydroxymethyl)nicotinate) with an uncoordinated carboxylate. The same reaction with Cd(NO₃)₂ ⋅ 4H₂O provides a two-dimensional (2D) network of [Cd(L₁′)₂]_n (3) with the carboxylates coordinated to cadmium(II) propagating the assembly. The corresponding reactions of Zn(NO₃)₂ ⋅ 6H₂O and Cd(NO₃)₂ ⋅ 4H₂O with 2-(hydroxymethyl)isonicotinic acid (HL₂) generated zwitterionic [Zn(L₂)₂(H₂O)₂] (2) and a 2D network [Cd(L₂)₂]_n⋅nDMF (4, DMF=N,N′-dimethylformamide), respectively. Complexes 1–4 are weakly emissive, giving ligand-centered emissions at 409 nm (1), 412/436 nm (2), 404 nm (3), and 412/436 nm (4) in CHCl₃ solutions upon excitation at 330 nm. This work points to the potential of using ‘hidden’ functionalities widely found in small organic molecules and natural products for the construction of coordination complexes with new functionality and potential applications.

Original language	English
Pages (from-to)	832-837
Number of pages	6
Journal	ChemPlusChem
Volume	85
Issue number	5
DOIs	https://doi.org/10.1002/cplu.202000175
Publication status	Published - May 2020

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@article{827619847c4446989db17ccf0eb0fe25,

title = "Zinc and Cadmium Complexes of Pyridinemethanol Carboxylates: Metal Carboxylate Zwitterions and Metal–Organic Frameworks",

abstract = "The heterofunctional lactone furo[3,4-b]pyridin-5(7H)-one (L1) undergoes a coordination-induced ring-opening reaction with Zn(NO3)2 ⋅ 6H2O to yield the zwitterionic [Zn(L1′)2(H2O)2] (1, L1′=2-(hydroxymethyl)nicotinate) with an uncoordinated carboxylate. The same reaction with Cd(NO3)2 ⋅ 4H2O provides a two-dimensional (2D) network of [Cd(L1′)2]n (3) with the carboxylates coordinated to cadmium(II) propagating the assembly. The corresponding reactions of Zn(NO3)2 ⋅ 6H2O and Cd(NO3)2 ⋅ 4H2O with 2-(hydroxymethyl)isonicotinic acid (HL2) generated zwitterionic [Zn(L2)2(H2O)2] (2) and a 2D network [Cd(L2)2]n⋅nDMF (4, DMF=N,N′-dimethylformamide), respectively. Complexes 1–4 are weakly emissive, giving ligand-centered emissions at 409 nm (1), 412/436 nm (2), 404 nm (3), and 412/436 nm (4) in CHCl3 solutions upon excitation at 330 nm. This work points to the potential of using {\textquoteleft}hidden{\textquoteright} functionalities widely found in small organic molecules and natural products for the construction of coordination complexes with new functionality and potential applications.",

keywords = "Carboxylates, lactones, metal-organic frameworks, ring-opening reactions, zwitterions",

author = "Yan Liu and Lin, {Shi Xin} and Niu, {Ru Jie} and Quan Liu and Zhang, {Wen Hua} and Young, {David J.}",

year = "2020",

month = may,

doi = "10.1002/cplu.202000175",

language = "English",

volume = "85",

pages = "832--837",

journal = "ChemPlusChem",

issn = "0010-0765",

publisher = "Czech Academy of Sciences",

number = "5",

}

TY - JOUR

T1 - Zinc and Cadmium Complexes of Pyridinemethanol Carboxylates

T2 - Metal Carboxylate Zwitterions and Metal–Organic Frameworks

AU - Liu, Yan

AU - Lin, Shi Xin

AU - Niu, Ru Jie

AU - Liu, Quan

AU - Zhang, Wen Hua

AU - Young, David J.

PY - 2020/5

Y1 - 2020/5

N2 - The heterofunctional lactone furo[3,4-b]pyridin-5(7H)-one (L1) undergoes a coordination-induced ring-opening reaction with Zn(NO3)2 ⋅ 6H2O to yield the zwitterionic [Zn(L1′)2(H2O)2] (1, L1′=2-(hydroxymethyl)nicotinate) with an uncoordinated carboxylate. The same reaction with Cd(NO3)2 ⋅ 4H2O provides a two-dimensional (2D) network of [Cd(L1′)2]n (3) with the carboxylates coordinated to cadmium(II) propagating the assembly. The corresponding reactions of Zn(NO3)2 ⋅ 6H2O and Cd(NO3)2 ⋅ 4H2O with 2-(hydroxymethyl)isonicotinic acid (HL2) generated zwitterionic [Zn(L2)2(H2O)2] (2) and a 2D network [Cd(L2)2]n⋅nDMF (4, DMF=N,N′-dimethylformamide), respectively. Complexes 1–4 are weakly emissive, giving ligand-centered emissions at 409 nm (1), 412/436 nm (2), 404 nm (3), and 412/436 nm (4) in CHCl3 solutions upon excitation at 330 nm. This work points to the potential of using ‘hidden’ functionalities widely found in small organic molecules and natural products for the construction of coordination complexes with new functionality and potential applications.

AB - The heterofunctional lactone furo[3,4-b]pyridin-5(7H)-one (L1) undergoes a coordination-induced ring-opening reaction with Zn(NO3)2 ⋅ 6H2O to yield the zwitterionic [Zn(L1′)2(H2O)2] (1, L1′=2-(hydroxymethyl)nicotinate) with an uncoordinated carboxylate. The same reaction with Cd(NO3)2 ⋅ 4H2O provides a two-dimensional (2D) network of [Cd(L1′)2]n (3) with the carboxylates coordinated to cadmium(II) propagating the assembly. The corresponding reactions of Zn(NO3)2 ⋅ 6H2O and Cd(NO3)2 ⋅ 4H2O with 2-(hydroxymethyl)isonicotinic acid (HL2) generated zwitterionic [Zn(L2)2(H2O)2] (2) and a 2D network [Cd(L2)2]n⋅nDMF (4, DMF=N,N′-dimethylformamide), respectively. Complexes 1–4 are weakly emissive, giving ligand-centered emissions at 409 nm (1), 412/436 nm (2), 404 nm (3), and 412/436 nm (4) in CHCl3 solutions upon excitation at 330 nm. This work points to the potential of using ‘hidden’ functionalities widely found in small organic molecules and natural products for the construction of coordination complexes with new functionality and potential applications.

KW - Carboxylates

KW - lactones

KW - metal-organic frameworks

KW - ring-opening reactions

KW - zwitterions

UR - http://www.scopus.com/inward/record.url?scp=85085615931&partnerID=8YFLogxK

U2 - 10.1002/cplu.202000175

DO - 10.1002/cplu.202000175

M3 - Article

C2 - 32364322

AN - SCOPUS:85085615931

SN - 0010-0765

VL - 85

SP - 832

EP - 837

JO - ChemPlusChem

JF - ChemPlusChem

IS - 5

ER -

Zinc and Cadmium Complexes of Pyridinemethanol Carboxylates: Metal Carboxylate Zwitterions and Metal–Organic Frameworks

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