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Serium(III) iodida

Serium(III) iodida
Nama
Nama IUPAC
Triiodoserium
Nama lain
Serium triiodida
Sero iodida
Penanda
Model 3D (JSmol)
3DMet (({3DMet))}
Nomor EC
Nomor RTECS (({value))}
UNII
  • InChI=1S/Ce.3HI/h;3*1H/q+3;;;/p-3
    Key: ZEDZJUDTPVFRNB-UHFFFAOYSA-K
  • I[Ce](I)I
Sifat
CeI3
Massa molar 520,83 g·mol−1
Penampilan Padatan kuning[1][2]
Titik lebur 766 °C,[1] 752 °C[2]
Larut[2]
Kelarutan dalam aseton Larut[2]
Struktur[1][3][4]
PuBr3
Prisma trigonal bertudung-dua
(8-koordinat)
Kecuali dinyatakan lain, data di atas berlaku pada suhu dan tekanan standar (25 °C [77 °F], 100 kPa).
Referensi

Serium(III) iodida (CeI3) adalah sebuah senyawa yang dibentuk oleh kation serium(III) dan anion iodida.

Pembuatan

[sunting | sunting sumber]

Logam serium akan bereaksi dengan iodin ketika dipanaskan untuk membentuk serium(III) iodida:[2]

2 Ce + 3 I
2
→ 2 CeI
3

Senyawa ini juga terbentuk ketika serium bereaksi dengan raksa(II) iodida pada suhu tinggi:[2]

2 Ce + 3 HgI
2
→ 2 CeI
3
+ 3 Hg

Serium(III) iodida mengadopsi struktur kristal plutonium(III) bromida.[3][4] Senyawa ini mengandung ion Ce3+ dengan bentuk prisma trigonal bertudung-dua 8-koordinat.[1]

Serium(III) iodida digunakan sebagai zat perantara farmasi[5] dan sebagai bahan awal untuk senyawa organoserium.[2]

Referensi

[sunting | sunting sumber]
  1. ^ a b c d Greenwood, Norman N.; Earnshaw, A. (1997), Chemistry of the Elements (edisi ke-2), Oxford: Butterworth-Heinemann, hlm. 1240–1241, ISBN 0-7506-3365-4 
  2. ^ a b c d e f g Imamoto, Tsuneo (15 April 2001). "Cerium(III) Iodide". Encyclopedia of Reagents for Organic Synthesis. John Wiley & Sons, Ltd. doi:10.1002/047084289X.rc043. ISBN 9780471936237. 
  3. ^ a b Wells, A. F. (1984). Structural Inorganic Chemistry (edisi ke-5). Oxford University Press. hlm. 421. ISBN 978-0-19-965763-6. 
  4. ^ a b Asprey, L. B.; Keenan, T. K.; Kruse, F. H. (1964). "Preparation and Crystal Data for Lanthanide and Actinide Triiodides". Inorg. Chem. 3 (8): 1137–1141. doi:10.1021/ic50018a015. 
  5. ^ "7790-87-6 - Cerium(III) iodide, ultra dry, 99.9% (REO) - Cerium triiodide - 13641 - Alfa Aesar". alfa.com. Diakses tanggal 12 Februari 2024. 
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Serium(III) iodida
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