𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Synthesis and Crystal Structure of a New Complex Oxyfluoride La0.813Sr0.187Cu(O,F)3−δ

✍ Scribed by A.M. Abakumov; J. Hadermann; M.G. Rozova; B.Ph. Pavljuk; E.V. Antipov; O.I. Lebedev; G. van Tendeloo

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
457 KB
Volume
149
Category
Article
ISSN
0022-4596

No coin nor oath required. For personal study only.

✦ Synopsis

La 8؊x Sr x Cu 8 O 20؊ (x ‫؍‬ 1.3, 1.5, and 1.9) compounds were 6uorinated using XeF 2 as a 6uorinating agent. The formation of a new tetragonal complex oxy6uoride La 0.813 Sr 0.187 Cu(O, F) 3؊ was observed. The structure of the new phase was re5ned using X-ray powder data (a ‫؍‬ 3.7921(3) A s , c ‫؍‬ 4.0515(4) A s , S. G. P4/mmm, R 1 ‫؍‬ 0.020, R P ‫؍‬ 0.045, R wP ‫؍‬ 0.057) and was con-5rmed by electron di4raction and high-resolution electron microscopy (HREM). The tetragonal distortion of the perovskite unit cell seems to be due to a Jahn+Teller deformation of the copper coordination environment with the formation of four short (1.896 A s ) and two long (2.026 A s ) Cu+(O, F) distances. Domains of the La 0.813 Sr 0.187 Cu(O, F) 3؊ phase were observed by HREM inside a matrix of a slightly 6uorinated initial phase.

📜 SIMILAR VOLUMES

Synthesis and Crystal Structure of a New
Synthesis and Crystal Structure of a New Silver(I) Complex
✍ Forough Adhami; Mitra Ghassemzadeh; Majid M. Heravi; Abas Taeb; Bernhard Neumüll 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 German ⚖ 68 KB 👁 3 views

The reaction of 4-amino-6-methyl-1,2,4-triazine-3(2 H)-thione-5-one (AMTTO) with silver(I) nitrate in methanol gives the complex [Ag(AMTTO) 2 ]NO 3 (1). 1 was characterized by IR and 13 C NMR spectroscopy and by an X-ray structure analysis [space group C2/c, Z = 4, lattice dimensions at ±80 °C: a =

Synthesis and crystal structure of a New
Synthesis and crystal structure of a New Diamine complex CuCl4(H2tn)
✍ Gai Zhang; Rong-Lan Zhang; Jian-She Zhao; Xin Gao; Shao-Kang Wang; Shui-Yang He 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 296 KB 👁 1 views

## Abstract In an attempt to synthesize a new pyrimidine complex of copper(II) in a solution reaction of CuBr~2~ with 2,2′‐bis(hexahydropyrimidine) and hydro‐chloric acid, we unexpectedly obtained a bright yellow chip‐like crystal of CuC~4~(H~2~tn) [H,tn=(H~3~NCH~2~CH~2~CH~2~NH~3~)^2+^]. Its struct

Synthesis and Crystal Structure of a New
Synthesis and Crystal Structure of a New Sulfur-Palladium-Nitrogen Complex
✍ Mitra Ghassemzadeh; Kioumars Aghapoor; Majid M. Heravi; Bernhard Neumüller 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 German ⚖ 121 KB 👁 2 views

The reaction of 4-amino-6-methyl-1,2,4-triazine-3(2H)-thione-5-one (AMTTO, 1) with palladium(II) chloride in acetonitrile/methanol leads to the N,S-coordinated complex [Pd(g 2 -AMTTO-N,S)Cl 2 ] ´CH 3 OH (2). 2 has been characterized by IR and MS techniques. The ligand 1 and the complex 2 were also i