Magnetic feature and near-infrared absorption of a [Pt(mnt)2]--based H-bond supramolecular crystal

Cui Ping Li; Li Nie; Wen Bo Pei; Li Li; Zheng Fang Tian; Jian Lan Liu; Xu Sheng Gao; Xiao Ming Ren

doi:10.1016/j.jssc.2016.08.002

Magnetic feature and near-infrared absorption of a [Pt(mnt)₂]^--based H-bond supramolecular crystal

Cui Ping Li, Li Nie, Wen Bo Pei, Li Li, Zheng Fang Tian, Jian Lan Liu, Xu Sheng Gao, Xiao Ming Ren

School of Chemistry and Moleculai Engineering

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

1 Scopus citations

Abstract

A new salt [H₂DABCO][Pt(mnt)₂]₂ (1) (mnt^2-=maleonitriledithiolate and H₂DABCO²⁺ is diprotonated 1,4-diazabicyclo[2.2.2]octane) has been synthesized; its crystal structure, magnetic and near-IR absorption properties have been investigated. Two different [Pt(mnt)₂]^- anions form the strong π-dimers, labeled as Pt(1)-dimer and Pt(2)-dimer, with quite shorter Pt…Pt and S…S distances and molecular plane-to-plane distance (<3.5 Å) within a dimer. The [Pt(mnt)₂]₂^2- π-dimers are connected through the cations in the strong H-bond manner to form three-dimensional H-bond supramolecular crystal. The salt shows weak paramagnetism in 1.99–300 K and this is due to the existence of strong antiferromagnetic coupling within a π-dimer. In addition, a small thermal hysteresis loop is observed at ca. 120 K, indicating that a phase transition probably occurs that is further confirmed by variable-temperature IR spectra. Another fascinating functionality of 1 is the intense near-IR absorption in the region of 750–2500 nm, and this near-IR absorption feature makes it to be a promising optical material.

Original language	English
Pages (from-to)	38-43
Number of pages	6
Journal	Journal of Solid State Chemistry
Volume	243
DOIs	https://doi.org/10.1016/j.jssc.2016.08.002
State	Published - 1 Nov 2016

Keywords

Crystal structure
H-bond supramolecular crystal
Magnetic property
Near-IR absorption

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10.1016/j.jssc.2016.08.002

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@article{07f4cf9a35894c6f9fd431eb95d845b3,

title = "Magnetic feature and near-infrared absorption of a [Pt(mnt)2]--based H-bond supramolecular crystal",

abstract = "A new salt [H2DABCO][Pt(mnt)2]2 (1) (mnt2-=maleonitriledithiolate and H2DABCO2+ is diprotonated 1,4-diazabicyclo[2.2.2]octane) has been synthesized; its crystal structure, magnetic and near-IR absorption properties have been investigated. Two different [Pt(mnt)2]- anions form the strong π-dimers, labeled as Pt(1)-dimer and Pt(2)-dimer, with quite shorter Pt…Pt and S…S distances and molecular plane-to-plane distance (<3.5 {\AA}) within a dimer. The [Pt(mnt)2]22- π-dimers are connected through the cations in the strong H-bond manner to form three-dimensional H-bond supramolecular crystal. The salt shows weak paramagnetism in 1.99–300 K and this is due to the existence of strong antiferromagnetic coupling within a π-dimer. In addition, a small thermal hysteresis loop is observed at ca. 120 K, indicating that a phase transition probably occurs that is further confirmed by variable-temperature IR spectra. Another fascinating functionality of 1 is the intense near-IR absorption in the region of 750–2500 nm, and this near-IR absorption feature makes it to be a promising optical material.",

keywords = "Crystal structure, H-bond supramolecular crystal, Magnetic property, Near-IR absorption",

author = "Li, {Cui Ping} and Li Nie and Pei, {Wen Bo} and Li Li and Tian, {Zheng Fang} and Liu, {Jian Lan} and Gao, {Xu Sheng} and Ren, {Xiao Ming}",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier Inc.",

year = "2016",

month = nov,

day = "1",

doi = "10.1016/j.jssc.2016.08.002",

language = "英语",

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journal = "Journal of Solid State Chemistry",

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T1 - Magnetic feature and near-infrared absorption of a [Pt(mnt)2]--based H-bond supramolecular crystal

AU - Li, Cui Ping

AU - Nie, Li

AU - Pei, Wen Bo

AU - Li, Li

AU - Tian, Zheng Fang

AU - Liu, Jian Lan

AU - Gao, Xu Sheng

AU - Ren, Xiao Ming

PY - 2016/11/1

Y1 - 2016/11/1

N2 - A new salt [H2DABCO][Pt(mnt)2]2 (1) (mnt2-=maleonitriledithiolate and H2DABCO2+ is diprotonated 1,4-diazabicyclo[2.2.2]octane) has been synthesized; its crystal structure, magnetic and near-IR absorption properties have been investigated. Two different [Pt(mnt)2]- anions form the strong π-dimers, labeled as Pt(1)-dimer and Pt(2)-dimer, with quite shorter Pt…Pt and S…S distances and molecular plane-to-plane distance (<3.5 Å) within a dimer. The [Pt(mnt)2]22- π-dimers are connected through the cations in the strong H-bond manner to form three-dimensional H-bond supramolecular crystal. The salt shows weak paramagnetism in 1.99–300 K and this is due to the existence of strong antiferromagnetic coupling within a π-dimer. In addition, a small thermal hysteresis loop is observed at ca. 120 K, indicating that a phase transition probably occurs that is further confirmed by variable-temperature IR spectra. Another fascinating functionality of 1 is the intense near-IR absorption in the region of 750–2500 nm, and this near-IR absorption feature makes it to be a promising optical material.

AB - A new salt [H2DABCO][Pt(mnt)2]2 (1) (mnt2-=maleonitriledithiolate and H2DABCO2+ is diprotonated 1,4-diazabicyclo[2.2.2]octane) has been synthesized; its crystal structure, magnetic and near-IR absorption properties have been investigated. Two different [Pt(mnt)2]- anions form the strong π-dimers, labeled as Pt(1)-dimer and Pt(2)-dimer, with quite shorter Pt…Pt and S…S distances and molecular plane-to-plane distance (<3.5 Å) within a dimer. The [Pt(mnt)2]22- π-dimers are connected through the cations in the strong H-bond manner to form three-dimensional H-bond supramolecular crystal. The salt shows weak paramagnetism in 1.99–300 K and this is due to the existence of strong antiferromagnetic coupling within a π-dimer. In addition, a small thermal hysteresis loop is observed at ca. 120 K, indicating that a phase transition probably occurs that is further confirmed by variable-temperature IR spectra. Another fascinating functionality of 1 is the intense near-IR absorption in the region of 750–2500 nm, and this near-IR absorption feature makes it to be a promising optical material.

KW - Crystal structure

KW - H-bond supramolecular crystal

KW - Magnetic property

KW - Near-IR absorption

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U2 - 10.1016/j.jssc.2016.08.002

DO - 10.1016/j.jssc.2016.08.002

M3 - 文章

AN - SCOPUS:84981283736

SN - 0022-4596

VL - 243

SP - 38

EP - 43

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

ER -

Magnetic feature and near-infrared absorption of a [Pt(mnt)₂]^--based H-bond supramolecular crystal

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