Structure of 2<i>H</i>,2'<i>H</i>-octafluorobiphenyl

Jones, J. Bryan; Brown, David

doi:10.1107/s0567740882002775

Cited by 7 publications

(3 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Exceptions occur when the substituents are small, as for¯uoride or alkoxy, e.g. CSD refcode BAWPUK (Jones & Brown, 1982), DECFDP (Neronova, 1968), and NOZZOR and NOZZUX (Ferreira et al, 1998), or can hydrogen bond, as in diols, e.g. JUPTOD (Sartori et al, 1992), NUTSUQ (Byrne et al, 1998), a hydroxy ether JAVHIX (Lin et al, 1989) and the 2,2 H -diamine DABIPH (Ottersen, 1977), where interplanar angles are ca 40±55…”

Section: Commentmentioning

confidence: 99%

1,6-Interactions between dimethylamino and aldehyde groups in two biphenyl derivatives

2001

View full text Add to dashboard Cite

The title compounds, 2‐(dimethylamino)biphenyl‐2′‐carboxaldehyde, C15H15NO, and 2‐(dimethylamino)biphenyl‐2′,6′‐dicarboxaldehyde, C16H15NO2, show similar 1,6‐interactions [N⋯C=O 2.929 (3) to 3.029 (3) Å] between the dimethylamino and aldehyde groups located in the ortho positions of the two rings, which lie at 58.1 (1)–62.4 (1)° to each other.

show abstract

Section: Commentmentioning

confidence: 99%

1,6-Interactions between dimethylamino and aldehyde groups in two biphenyl derivatives

2001

View full text Add to dashboard Cite

show abstract

“…The most influential factors in determining the properties of HEMs can be considered as mixing entropy (Δ S mix ), mixing enthalpy (Δ H mix ), Equation (), and AR mismatch (δ r ), Equation (): [ 8,9,97,98 ]

\Delta H_{\text{mix}} = 4 \sum_{i = i , i \neq j}^{n} \Delta H_{\text{mix}}^{i j} c_{i} c_{j}

\delta r = 100 \sqrt{\sum_{i = 1}^{n} c_{i} \left(\left(\right. 1 - \frac{r_{i}}{\sum_{i = 1}^{n} c_{i} r_{i}} \left.\right)\right)^{2}}

with c i and r i for the atomic concentration (in atomic percent) and AR (related values are taken from Ref.…”

Section: Introductionmentioning

confidence: 99%

“…This parameter arises from the difference in AR and concentration of the elements present in HEMs. [ 98 ] According to the Hume–Rothery rules, [ 104 ] a main factor for the formation of a solid solution is the AR difference. With an increase in AR difference, the tendency to form a solid solution reduces.…”

Section: Introductionmentioning

confidence: 99%

Atomic Radius Mismatch: A Key Parameter for Design and Synthesis of High‐Entropy Physical Vapor Deposition Coatings—Review

Lotfi‐Khojasteh,

Elmkhah,

Nouri

et al. 2024

Adv Eng Mater

View full text Add to dashboard Cite

High‐entropy metal sublattice coatings (HESCs) prepared by physical vapor deposition (PVD) have received attention due to their diverse range of properties and applications. One of the most critical requirements for their synthesis is the prediction and control of their wide‐spread properties, and several efforts have been undertaken using various thermodynamical parameters. The majority of these predictions concentrate on high‐entropy alloys (HEAs) while high‐entropy ceramics (HECs) received little attention. One of the most important parameters to control the structure and properties of HEAs is their atomic radius mismatch (δr), which we apply to crystalline, amorphous, and composite (amorphous matrix, crystalline matrix, and multilayer) HESCs. Based on the relationships between δr and structure, mixing enthalpy (ΔHmix), electronegativity difference (Δχ), ion bonding percentage (IBPHE), mechanical properties (including hardness, H, and Young’s modulus, E), and wear performance descriptors (H/E and H3/E2 ratios) we provide a δr‐based map to aid the design and selection of elements for HESCs.This article is protected by copyright. All rights reserved.

show abstract