Optical properties of a melt-quenched metal–organic framework glass

Qiao, Ang; Tao, Haizheng; Carson, Michael P.; Aldrich, Scott W.; Thirion, Lynn M.; Bennett, Thomas D.; Mauro, John C.; Yue, Yuanzheng

doi:10.1364/ol.44.001623

Cited by 72 publications

(99 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It is clearly shown that the value of n increases with the increase of bIm in these ZIF glass, which is in good agreement with other experimental results. 34…”

Section: Resultsmentioning

confidence: 99%

Unraveling the effects of linker substitution on structural, electronic and optical properties of amorphous zeolitic imidazolate frameworks-62 (a-ZIF-62) glasses: a DFT study

et al. 2020

View full text Add to dashboard Cite

show abstract

“…It is clearly shown that the value of n increases with the increase of bIm in these ZIF glass, which is in good agreement with other experimental results. 34…”

Section: Resultsmentioning

confidence: 99%

Unraveling the effects of linker substitution on structural, electronic and optical properties of amorphous zeolitic imidazolate frameworks-62 (a-ZIF-62) glasses: a DFT study

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Moreover, the ZIF glass exhibits a high degree of elastic deformation, and only a slight amount of pile-up is detected, implying a high degree of densification during indentation. In order to prepare bulk ZIF-62 glass samples for the mechanical testing, we applied a novel processing method, i.e., hot-press method 16 . The as-prepared crystalline ZIF-62 powder was first put into a metal mould with 10 mm inner diameter.…”

Section: Discussionmentioning

confidence: 99%

Anomalous Cracking in a Metal-Organic Framework Glass

Stępniewska¹,

Januchta²,

Zhou³

et al. 2019

Preprint

Self Cite

View full text Add to dashboard Cite

Metal-organic framework (MOF) glasses is a newly discovered family of melt-quenched glasses. Recently, several intriguing features (e.g., ultrahigh glass forming ability and low liquid fragility) have been discovered in the glasses obtained from zeolitic imidazolate frameworks (ZIFs) that are a subset of MOFs. However, the fracture behavior of ZIF glasses remains elusive. Here, we report on the first important finding, namely, the anomalous crack behavior in a representative ZIF glass, i.e., ZIF-62 glass with the chemical composition of<a> ZnIm2-xbImx</a>, where the central node – zinc - is coordinated to imidazolate (Im) and benzimidazole (bIm) ligands. By performing micro- and nano-indentation and atomic force microscopy (AFM) analysis, we observe a unique sub-surface cracking phenomenon with induced shear bands on the indent faces, in contrast to the cracking behavior of other types of network glasses. The occurrence of shear bands could be attributed to the breakage of coordinative bonds that are much weaker than ionic and covalent The observed anomalous cracking behavior accords with the high Poisson’s ratio (=0.34) of the ZIF-62 glass.

show abstract

“…In this regard, the optical properties of Zn‐ZIF‐62 glass were studied (Figure B). A high transmittance (up to 90 %) was found in the visible and near‐infrared wavelength ranges, comparable with that of many oxide glasses . Although the observed refractive index (1.56) is similar to that of most inorganic glasses, it has a lower Abbe number (ca.…”

Section: Properties Of the Liquid And Glass States Of O‐cpsmentioning

confidence: 99%

A New Dimension for Coordination Polymers and Metal–Organic Frameworks: Towards Functional Glasses and Liquids

et al. 2020

View full text Add to dashboard Cite

There are two categories of coordination polymers (CPs): inorganic CPs (i‐CPs) and organic ligand bridged CPs (o‐CPs). Based on the successful crystal engineering of CPs, we here propose noncrystalline states and functionalities as a new research direction for CPs. Control over the liquid or glassy states in materials is essential to obtain specific properties and functions. Several studies suggest the feasibility of obtaining liquid/glassy states in o‐CPs by design principles. The combination of metal ions and organic bridging ligands, together with the liquid/glass phase transformation, offer the possibility to transform o‐CPs into ionic liquids and other ionic soft materials. Synchrotron measurements and computational approaches contribute to elucidating the structures and dynamics of the liquid/glassy states of o‐CPs. This offers the opportunity to tune the porosity, conductivity, transparency, and other material properties. The unique energy landscape of liquid/glass o‐CPs offers opportunities for properties and functions that are complementary to those of the crystalline state.

show abstract

Optical properties of a melt-quenched metal–organic framework glass

Cited by 72 publications

References 19 publications

Unraveling the effects of linker substitution on structural, electronic and optical properties of amorphous zeolitic imidazolate frameworks-62 (a-ZIF-62) glasses: a DFT study

Unraveling the effects of linker substitution on structural, electronic and optical properties of amorphous zeolitic imidazolate frameworks-62 (a-ZIF-62) glasses: a DFT study

Anomalous Cracking in a Metal-Organic Framework Glass

A New Dimension for Coordination Polymers and Metal–Organic Frameworks: Towards Functional Glasses and Liquids

Contact Info

Product

Resources

About