Primary studyCore evidenceThin Film Device

Properties of IRMOF-14 and its analogues M-IRMOF-14 (M = Cd, alkaline earth metals): Electronic structure, structural stability, chemical bonding, and optical properties

Yang L.-M., Ravindran P., Vajeeston P. et al. · Physical Chemistry Chemical Physics · 2012 · 4713-4723

7materials
7samples
0synthesis routes
29measurements
153results
5claims and caveats

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Author interpretations and caveats

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Application RelevanceSupport assessment: Medium

The calculated reflectivity and maximum absorption coefficients of M-IRMOF-14 are much lower than corresponding inorganic oxides, which the authors suggest could be useful for optoelectronic applications requiring low reflectivity.

Caveat: Application relevance is inferred from computed optical properties; no device was fabricated or measured.

4721 · III.F Band structures and optical properties · Fig. 5 · Linked to 14 structured results

CaveatSupport assessment: High

The paper reports no first-hand DC electrical transport, thermoelectric, electrochemical, thin-film, or device measurements; optical conductivity is a computed frequency-dependent optical property.

Caveat: Category label refers to optoelectronic relevance, not an experimental device in this article.

4720 · III.F Band structures and optical properties · Fig. 5

Phase AssignmentSupport assessment: High

All modelled M-IRMOF-14 members are predicted to be soft materials that may exist in highly symmetric face-centred cubic Fm-3m structures and have favourable negative formation enthalpies.

Caveat: Computational prediction; only Zn-IRMOF-14 was experimentally available according to the paper.

4722 · Conclusions · Linked to 14 structured results

Structure Property LinkSupport assessment: High

The M-IRMOF-14 band gap is approximately 2.4-2.6 eV across the closed-shell divalent-metal series and is governed primarily by the organic linker rather than the metal ion.

Caveat: Based on DFT band gaps, which the authors note are often underestimated.

4717-4719 · III.D Electronic density of states · Table 5 · Linked to 7 structured results

Structure Property LinkSupport assessment: High

M-O bonding is mainly ionic with some covalent contribution; Be-O has relatively more covalency and Ba-O less covalency within the alkaline-earth series.

Caveat: Population analyses are method-dependent descriptors.

4719 · III.E Chemical bonding · Table S1 · Linked to 14 structured results

Material identities

Names and aliases are kept exactly within the paper’s own identity model.

MaterialCompositionStructure contextSource
Ba-IRMOF-14Ba8O26C108H48 (primitive-cell model; equivalent to two M4O(PDC)3 formula units)oxygen-centred Ba4O tetrahedral nodes · pyrene-2,7-dicarboxylate (PDC)3D · Model Systemface-centred cubic Fm-3m symmetry, space group no. 2254715 · III.A Structural details · Fig. 1
Be-IRMOF-14Be8O26C108H48 (primitive-cell model; equivalent to two M4O(PDC)3 formula units)oxygen-centred Be4O tetrahedral nodes · pyrene-2,7-dicarboxylate (PDC)3D · Model Systemface-centred cubic Fm-3m symmetry, space group no. 2254715 · III.A Structural details · Fig. 1
Ca-IRMOF-14Ca8O26C108H48 (primitive-cell model; equivalent to two M4O(PDC)3 formula units)oxygen-centred Ca4O tetrahedral nodes · pyrene-2,7-dicarboxylate (PDC)3D · Model Systemface-centred cubic Fm-3m symmetry, space group no. 2254715 · III.A Structural details · Fig. 1
Cd-IRMOF-14Cd8O26C108H48 (primitive-cell model; equivalent to two M4O(PDC)3 formula units)oxygen-centred Cd4O tetrahedral nodes · pyrene-2,7-dicarboxylate (PDC)3D · Model Systemface-centred cubic Fm-3m symmetry, space group no. 2254715 · III.A Structural details · Fig. 1
Mg-IRMOF-14Mg8O26C108H48 (primitive-cell model; equivalent to two M4O(PDC)3 formula units)oxygen-centred Mg4O tetrahedral nodes · pyrene-2,7-dicarboxylate (PDC)3D · Model Systemface-centred cubic Fm-3m symmetry, space group no. 2254715 · III.A Structural details · Fig. 1
Sr-IRMOF-14Sr8O26C108H48 (primitive-cell model; equivalent to two M4O(PDC)3 formula units)oxygen-centred Sr4O tetrahedral nodes · pyrene-2,7-dicarboxylate (PDC)3D · Model Systemface-centred cubic Fm-3m symmetry, space group no. 2254715 · III.A Structural details · Fig. 1
IRMOF-14Zn8O26C108H48 (primitive-cell model; equivalent to two M4O(PDC)3 formula units)oxygen-centred Zn4O tetrahedral nodes · pyrene-2,7-dicarboxylate (PDC)3D · Model Systemface-centred cubic Fm-3m symmetry, space group no. 2254715 · III.A Structural details · Fig. 1

Sample register

Sample form, processing state and composition status define the context for measurements.

Show 7 sample records
SampleForm and roleProcessing and geometrySource
Ba-IRMOF-14 computational modelresearch_0357__mat__irmof14_baModel · Model System · Modelfully relaxed DFT model at equilibrium volume4715 · III.B Structural optimization
Be-IRMOF-14 computational modelresearch_0357__mat__irmof14_beModel · Model System · Modelfully relaxed DFT model at equilibrium volume4715 · III.B Structural optimization
Ca-IRMOF-14 computational modelresearch_0357__mat__irmof14_caModel · Model System · Modelfully relaxed DFT model at equilibrium volume4715 · III.B Structural optimization
Cd-IRMOF-14 computational modelresearch_0357__mat__irmof14_cdModel · Model System · Modelfully relaxed DFT model at equilibrium volume4715 · III.B Structural optimization
Mg-IRMOF-14 computational modelresearch_0357__mat__irmof14_mgModel · Model System · Modelfully relaxed DFT model at equilibrium volume4715 · III.B Structural optimization
Sr-IRMOF-14 computational modelresearch_0357__mat__irmof14_srModel · Model System · Modelfully relaxed DFT model at equilibrium volume4715 · III.B Structural optimization
IRMOF-14 computational modelresearch_0357__mat__irmof14_znModel · Model System · Modelfully relaxed DFT model at equilibrium volume4715 · III.B Structural optimization