The indium subnitrides Ae6In4(InxLi y)N3-z (Ae = Sr and Ba)

Mark S. Bailey; Daniel Y. Shen; Michael A. McGuire; Daniel C. Fredrickson; Brian H. Toby; Francis J. DiSalvo; Hisanori Yamane; Shinya Sasaki; Masahiko Shimada

doi:10.1021/ic050613i

The indium subnitrides Ae₆In₄(In_xLi _y)N_3-z (Ae = Sr and Ba)

Mark S. Bailey, Daniel Y. Shen, Michael A. McGuire, Daniel C. Fredrickson, Brian H. Toby, Francis J. DiSalvo, Hisanori Yamane, Shinya Sasaki, Masahiko Shimada

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

14 Scopus citations

Abstract

The indium nitrides Sr₆In₄(In_0.32Li _0.92)N_2.49 and Ba₆In_4.78N _2.72 have been synthesized from an excess of molten sodium. They crystallize in a stuffed variant of the η-carbide structure type in the cubic space group Fd3m with Z = 8. The lattice parameters are a = 14.3752(4) and 15.216(1) Å, with cell volumes 2970.6(2) and 3523.3(6) Å³, respectively. In both compounds there are vacancies on some of the indium and nitrogen sites and, in the case of Sr₆In ₄-(In_0.32Li_0.92)N_2.49, mixed lithium-indium occupancy of one metal site. It is demonstrated that the partial and mixed occupancies act to carefully tune to electron count to almost fulfill the bonding requirements of the stellar quadrangular subnets of both compounds. Four probe resistivity measurements performed upon a pellet of Sr ₆In₄(In_0.32Li_0.92)N_2.49 show it to have a room-temperature resistivity of 6.3 mΩ·cm with a weak temperature dependence.

Original language	English
Pages (from-to)	6680-6690
Number of pages	11
Journal	Inorganic Chemistry
Volume	44
Issue number	19
DOIs	https://doi.org/10.1021/ic050613i
State	Published - Sep 19 2005
Externally published	Yes

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@article{1e8a155eba8d4e409fc4ba38e4107301,

title = "The indium subnitrides Ae6In4(InxLi y)N3-z (Ae = Sr and Ba)",

abstract = "The indium nitrides Sr6In4(In0.32Li 0.92)N2.49 and Ba6In4.78N 2.72 have been synthesized from an excess of molten sodium. They crystallize in a stuffed variant of the η-carbide structure type in the cubic space group Fd3m with Z = 8. The lattice parameters are a = 14.3752(4) and 15.216(1) {\AA}, with cell volumes 2970.6(2) and 3523.3(6) {\AA}3, respectively. In both compounds there are vacancies on some of the indium and nitrogen sites and, in the case of Sr6In 4-(In0.32Li0.92)N2.49, mixed lithium-indium occupancy of one metal site. It is demonstrated that the partial and mixed occupancies act to carefully tune to electron count to almost fulfill the bonding requirements of the stellar quadrangular subnets of both compounds. Four probe resistivity measurements performed upon a pellet of Sr 6In4(In0.32Li0.92)N2.49 show it to have a room-temperature resistivity of 6.3 mΩ·cm with a weak temperature dependence.",

author = "Bailey, {Mark S.} and Shen, {Daniel Y.} and McGuire, {Michael A.} and Fredrickson, {Daniel C.} and Toby, {Brian H.} and DiSalvo, {Francis J.} and Hisanori Yamane and Shinya Sasaki and Masahiko Shimada",

year = "2005",

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doi = "10.1021/ic050613i",

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T1 - The indium subnitrides Ae6In4(InxLi y)N3-z (Ae = Sr and Ba)

AU - Bailey, Mark S.

AU - Shen, Daniel Y.

AU - McGuire, Michael A.

AU - Fredrickson, Daniel C.

AU - Toby, Brian H.

AU - DiSalvo, Francis J.

AU - Yamane, Hisanori

AU - Sasaki, Shinya

AU - Shimada, Masahiko

PY - 2005/9/19

Y1 - 2005/9/19

N2 - The indium nitrides Sr6In4(In0.32Li 0.92)N2.49 and Ba6In4.78N 2.72 have been synthesized from an excess of molten sodium. They crystallize in a stuffed variant of the η-carbide structure type in the cubic space group Fd3m with Z = 8. The lattice parameters are a = 14.3752(4) and 15.216(1) Å, with cell volumes 2970.6(2) and 3523.3(6) Å3, respectively. In both compounds there are vacancies on some of the indium and nitrogen sites and, in the case of Sr6In 4-(In0.32Li0.92)N2.49, mixed lithium-indium occupancy of one metal site. It is demonstrated that the partial and mixed occupancies act to carefully tune to electron count to almost fulfill the bonding requirements of the stellar quadrangular subnets of both compounds. Four probe resistivity measurements performed upon a pellet of Sr 6In4(In0.32Li0.92)N2.49 show it to have a room-temperature resistivity of 6.3 mΩ·cm with a weak temperature dependence.

AB - The indium nitrides Sr6In4(In0.32Li 0.92)N2.49 and Ba6In4.78N 2.72 have been synthesized from an excess of molten sodium. They crystallize in a stuffed variant of the η-carbide structure type in the cubic space group Fd3m with Z = 8. The lattice parameters are a = 14.3752(4) and 15.216(1) Å, with cell volumes 2970.6(2) and 3523.3(6) Å3, respectively. In both compounds there are vacancies on some of the indium and nitrogen sites and, in the case of Sr6In 4-(In0.32Li0.92)N2.49, mixed lithium-indium occupancy of one metal site. It is demonstrated that the partial and mixed occupancies act to carefully tune to electron count to almost fulfill the bonding requirements of the stellar quadrangular subnets of both compounds. Four probe resistivity measurements performed upon a pellet of Sr 6In4(In0.32Li0.92)N2.49 show it to have a room-temperature resistivity of 6.3 mΩ·cm with a weak temperature dependence.

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JO - Inorganic Chemistry

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The indium subnitrides Ae₆In₄(In_xLi _y)N_3-z (Ae = Sr and Ba)

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