The paddlewheel complex of 1,8-naphthyridine and palladium(II)

Mathias T. Nielsen; Dmytro Mihrin; Mike S.B. Jørgensen; Xiaomei Yan; Rolf W. Berg; Xinxin Xiao; René Wugt Larsen; Martin Nielsen

doi:10.1016/j.poly.2024.117310

The paddlewheel complex of 1,8-naphthyridine and palladium(II)

Mathias T. Nielsen, Dmytro Mihrin, Mike S.B. Jørgensen, Xiaomei Yan, Rolf W. Berg, Xinxin Xiao, René Wugt Larsen, Martin Nielsen^*

^*Corresponding author for this work

Department of Chemistry

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Abstract

This work presents the synthesis of the tetracationic paddlewheel complex of 1,8-naphthyridine and palladium(II), [Pd₂(µ-napy)₄]X₄, (X = BF₄⁻ or PF₆⁻). Single-crystal X-ray diffraction confirms a D_4h symmetric paddlewheel structure encompassing the two Pd units in the metal core coordinated by four ditopic 1,8-naphthyridine ligands, featuring a relatively short Pd–Pd distance. Spectroscopic analyses combined with density-functional theory (DFT) provide insights into the nature of the Pd–Pd and Pd–Napy interactions as well as observed optical absorption frequencies.

Original language	English
Article number	117310
Journal	Polyhedron
Volume	267
Number of pages	8
ISSN	0277-5387
DOIs	https://doi.org/10.1016/j.poly.2024.117310
Publication status	Published - 2025

Keywords

1,8-Naphthyridine
Cyclic voltammetry
DFT
Far infrared
Palladium

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title = "The paddlewheel complex of 1,8-naphthyridine and palladium(II)",

abstract = "This work presents the synthesis of the tetracationic paddlewheel complex of 1,8-naphthyridine and palladium(II), [Pd2(µ-napy)4]X4, (X = BF4− or PF6−). Single-crystal X-ray diffraction confirms a D4h symmetric paddlewheel structure encompassing the two Pd units in the metal core coordinated by four ditopic 1,8-naphthyridine ligands, featuring a relatively short Pd–Pd distance. Spectroscopic analyses combined with density-functional theory (DFT) provide insights into the nature of the Pd–Pd and Pd–Napy interactions as well as observed optical absorption frequencies.",

keywords = "1,8-Naphthyridine, Cyclic voltammetry, DFT, Far infrared, Palladium",

author = "Nielsen, {Mathias T.} and Dmytro Mihrin and J{\o}rgensen, {Mike S.B.} and Xiaomei Yan and Berg, {Rolf W.} and Xinxin Xiao and Larsen, {Ren{\'e} Wugt} and Martin Nielsen",

note = "Publisher Copyright: {\textcopyright} 2024 The Author(s)",

year = "2025",

doi = "10.1016/j.poly.2024.117310",

language = "English",

volume = "267",

journal = "Polyhedron",

issn = "0277-5387",

publisher = "Elsevier",

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T1 - The paddlewheel complex of 1,8-naphthyridine and palladium(II)

AU - Nielsen, Mathias T.

AU - Mihrin, Dmytro

AU - Jørgensen, Mike S.B.

AU - Yan, Xiaomei

AU - Berg, Rolf W.

AU - Xiao, Xinxin

AU - Larsen, René Wugt

AU - Nielsen, Martin

PY - 2025

Y1 - 2025

N2 - This work presents the synthesis of the tetracationic paddlewheel complex of 1,8-naphthyridine and palladium(II), [Pd2(µ-napy)4]X4, (X = BF4− or PF6−). Single-crystal X-ray diffraction confirms a D4h symmetric paddlewheel structure encompassing the two Pd units in the metal core coordinated by four ditopic 1,8-naphthyridine ligands, featuring a relatively short Pd–Pd distance. Spectroscopic analyses combined with density-functional theory (DFT) provide insights into the nature of the Pd–Pd and Pd–Napy interactions as well as observed optical absorption frequencies.

AB - This work presents the synthesis of the tetracationic paddlewheel complex of 1,8-naphthyridine and palladium(II), [Pd2(µ-napy)4]X4, (X = BF4− or PF6−). Single-crystal X-ray diffraction confirms a D4h symmetric paddlewheel structure encompassing the two Pd units in the metal core coordinated by four ditopic 1,8-naphthyridine ligands, featuring a relatively short Pd–Pd distance. Spectroscopic analyses combined with density-functional theory (DFT) provide insights into the nature of the Pd–Pd and Pd–Napy interactions as well as observed optical absorption frequencies.

KW - 1,8-Naphthyridine

KW - Cyclic voltammetry

KW - DFT

KW - Far infrared

KW - Palladium

U2 - 10.1016/j.poly.2024.117310

DO - 10.1016/j.poly.2024.117310

M3 - Journal article

AN - SCOPUS:85211033163

SN - 0277-5387

VL - 267

JO - Polyhedron

JF - Polyhedron

M1 - 117310

ER -

The paddlewheel complex of 1,8-naphthyridine and palladium(II)

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