Rh8Cd43: A rhombohedral variant of a cubic giant cell structure

Koley, Biplab; Ghanta, Sivaprasad; Misra, Samiran; Jana, Partha P.

doi:10.1016/j.jallcom.2016.11.232

Cited by 5 publications

(4 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The significance of the occupational disorder in one Cd position was discussed based on detailed bonding analysis [23] . The existence of two closely related complex intermetallic alloys have been reported by the same group, e. g., Rh 8 Cd 43 and RhCd 9+δ (−1.18≤δ≤0.29) [24–25] . Rh 8 Cd 43 is one of the first examples of a rhombohedral distortion of a (2a γ ) 3 ‐ superstructure of cubic γ‐brass, and it is closely related to Rh 7 Mg 44 [26] .…”

Section: Introductionmentioning

confidence: 97%

“…[23] The existence of two closely related complex intermetallic alloys have been reported by the same group, e. g., Rh 8 Cd 43 and RhCd 9 + δ (À 1.18 � δ � 0.29). [24][25] Rh 8 Cd 43 is one of the first examples of a rhombohedral distortion of a (2a γ ) 3 -superstructure of cubic γ-brass, and it is closely related to Rh 7 Mg 44 . [26] RhCd 9 + δ (À 1.18 � δ � 0.29) represents a (2a γ ) 3 -superstructure of cubic γ-brass and is isostructural to Rh 7À x Mg 44 + x .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of the Homoatomic and Multicenter Bonding on the Formation of CsCl‐type RhCd

Roy,

Giri

2024

Zeitschrift anorg allge chemie

View full text Add to dashboard Cite

The electronic structure and chemical bonding analysis of the recently uncovered CsCl‐type RhCd have been discussed thoroughly in this article. It is observed that a more complex combination of long‐range heteroatomic (Rh‐Cd) and homoatomic (Rh‐Rh and Cd‐Cd) interactions as well as multicenter Rh‐Cd‐Rh interactions influence the formation of CsCl type‐RhCd. On the other hand, the other two structurally closely related phases (Rh2Cd5 and Rh3Cd5−δ) are mostly dominated by the partially covalent Rh‐Cd heteroatomic interactions.

show abstract

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Influence of the Homoatomic and Multicenter Bonding on the Formation of CsCl‐type RhCd

Roy,

Giri

2024

Zeitschrift anorg allge chemie

View full text Add to dashboard Cite

show abstract

“…In the present investigation on the Rh–Cd binary system, − a new phase, Rh 3 Cd 5−δ , has been uncovered that occurs in close vicinity to RhCd (1:1). The phase is slightly cadmium-rich and represents a defect 2 × 2 × 2 superstructure of the body-centered-cubic (bcc)-type RhCd.…”

Section: Introductionmentioning

confidence: 99%

A Vacancy-Driven Intermetallic Phase: Rh₃Cd_5−δ (δ ∼ 0.56)

et al. 2021

Self Cite

View full text Add to dashboard Cite

A nonstoichiometric line phase, Rh 3 Cd 5−δ (δ ∼ 0.56), is found in close vicinity to RhCd and structurally characterized by single-crystal X-ray diffraction and energy-dispersive X-ray spectroscopy. The compound crystallizes in the cubic space group Im3m (No. 229) with lattice constant a = 6.3859(9) Å and represents a 2 × 2 × 2 superstructure of RhCd, which accommodates a vacancy concentration of nearly 6% in its crystal structure. The first-principles electronic structure calculation on a hypothetical ordered configuration of Rh 3 Cd 5−δ reveals that Rh−Cd heteroatomic interaction plays a major role in the stability of the compound. A combination of the total energy, formation energy, and crystal orbital Hamilton population calculations on hypothetical model configurations establishes that the compound upholds an optimum vacancy concentration in the Cd2a (Cd1) site for the stability of the phase.

show abstract

“…Cadmium-based alloys form extremely complex structures, including QCs (Takakura et al, 2007). Many such complex compounds exist in the binary Ni-Cd, Pd-Cd and Rh-Cd systems (Jana & Lidin, 2013a,b;Koley et al, 2017). In the binary phase field of the Cu-Cd system (Okamoto & Okamoto, 2013), only a few compounds are reported.…”

Section: Introductionmentioning

confidence: 99%

Crystal structures of two very similar 2 × 2 × 2 superstructures of γ-brass-related phases in ternary Ir–Cd–Cu system

Ghanta

Roy

Jana

2020

Acta Crystallogr Sect B

Self Cite

View full text Add to dashboard Cite

A binary phase Ir 8 Cd 41 in the Ir-Cd binary system and novel ternary phases in the Ir-Cd-Cu system have been synthesized from the constituent elements using high-temperature solid-state synthesis. The structure of previously reported Ir 8 Cd 41 and newly found ternary phases in the Ir-Cd-Cu system have been characterized by single crystal X-ray diffraction and EDS analysis. The structural analysis reveals that Ir 8 Cd 41 adopts V 8 Ga 41 -type structure and ternary Ir-Cd-Cu phases adopt two 2 Â 2 Â 2-superstructures of the -brassrelated phase. The structures of ternary Ir-Cd-Cu phases are associated with structural disorder (vacancies as well as mixed site occupancies). The crystal structures of the ternary phases are viewed using layer description and cluster concept. The 2 Â 2 Â 2-superstructure of -brass-related phases in the Cu-poor region are not isostructural with the phases in the Cu-rich region, and they are consistent with the absence of a continuous phase region between two 2 Â 2 Â 2-superstructures of -brass-related phases. In the Cu-poor region, the structures contain $404 atoms per unit cell, whereas in the Cu-rich phases the structures contain $411 atoms in their respective unit cells. The crystal structures in the Cu-poor region represent a new type in the 2 Â 2 Â 2superstructure of -brass-related phases in view of the combination of constituent cluster types, whereas the structures in the Cu-rich region adopt the Rh 7 Mg 44 structure type.

show abstract

Rh8Cd43: A rhombohedral variant of a cubic giant cell structure

Cited by 5 publications

References 26 publications

Influence of the Homoatomic and Multicenter Bonding on the Formation of CsCl‐type RhCd

Influence of the Homoatomic and Multicenter Bonding on the Formation of CsCl‐type RhCd

A Vacancy-Driven Intermetallic Phase: Rh₃Cd_5−δ (δ ∼ 0.56)

Crystal structures of two very similar 2 × 2 × 2 superstructures of γ-brass-related phases in ternary Ir–Cd–Cu system

Contact Info

Product

Resources

About

Rh8Cd43: A rhombohedral variant of a cubic giant cell structure

Cited by 5 publications

References 26 publications

Influence of the Homoatomic and Multicenter Bonding on the Formation of CsCl‐type RhCd

Influence of the Homoatomic and Multicenter Bonding on the Formation of CsCl‐type RhCd

A Vacancy-Driven Intermetallic Phase: Rh3Cd5−δ (δ ∼ 0.56)

Crystal structures of two very similar 2 × 2 × 2 superstructures of γ-brass-related phases in ternary Ir–Cd–Cu system

Contact Info

Product

Resources

About

A Vacancy-Driven Intermetallic Phase: Rh₃Cd_5−δ (δ ∼ 0.56)