Preparation, spectral properties and structures of Cu(LN)xNi(CN)4 (LN = N-methylated derivates of 1,2-diaminoethane; x = 1,2)

KUCHÁR, J., J. ČERNÁK, Z. MAYEROVÁ, Pavel KUBÁČEK and Zdirad ŽÁK. Preparation, spectral properties and structures of Cu(LN)xNi(CN)4 (LN = N-methylated derivates of 1,2-diaminoethane; x = 1,2). Solid State Phenomena. 90-91, No 1, p. 323-328. ISSN 1012-0394. 2003.

Basic information

• Original name: Preparation, spectral properties and structures of Cu(LN)xNi(CN)4 (LN = N-methylated derivates of 1,2-diaminoethane; x = 1,2)
• Name in Czech: Příprava, spektrální vlastnosti a struktura Cu(LN)xNi(CN)4 (LN = N-methylované deriváty 1,2-diaminoethanu; x = 1,2)
• Authors: KUCHÁR, J. (703 Slovakia), J. ČERNÁK (703 Slovakia), Z. MAYEROVÁ (703 Slovakia), Pavel KUBÁČEK (203 Czech Republic, guarantor) and Zdirad ŽÁK (203 Czech Republic).
• Edition: Solid State Phenomena, 2003, 1012-0394.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10402 Inorganic and nuclear chemistry
• Country of publisher: Switzerland
• Confidentiality degree: is not subject to a state or trade secret
• Impact factor: Impact factor: 0.687
• RIV identification code: RIV/00216224:14310/03:00021159
• Organization unit: Faculty of Science
• Keywords in English: Copper; Tetracyanonickellate(II); Crystal Structure; Low-dimensional; IR and EPR spectra
• Tags: copper, Crystal Structure, IR and EPR spectra, Low-dimensional, Tetracyanonickellate(II)

Abstract

From the water - methanol solution of Cu(II) - LN - [Ni(CN)4]2- (1:2:1) (LN = N, N-dimethylethylenediamine (dmen); N,N'-dimethylethylenediamine (bmen); N,N,N',N'-tetramethylethylenediamine (tmen) ) were isolated three new compounds: Cu(dmen)2Ni(CN)4 (CDNC), Cu(bmen)2Ni(CN)4 (CBNC) and Cu(tmen)Ni(CN)4 (CTNC). The result of X-ray structure analysis have shown that CDNC exhibits one-dimensional structure and consists of infinite quasi-linear 2,2-TT chains [-NC-Ni(CN)2-CN-Cu(dmen)2-] running parallel with the c axis. The results of elemental analyses and IR spectra suggest similarities between CBNC and CDNC with respect to the composition and structure. On the other hand, CTNC has only one tmen ligand in the copper atom co-ordination sphere, and as a consequence, other type of structure containing terminal and bridging cyano groups has been formed. The results of EPR spectroscopy indicate the local symmetry at unpaired electron centre is (almost) uniaxial for CDNC, rhombic for CBNC, and uniaxial for CTNC.

Abstract (in Czech)

Z roztoku voda - methanol, který obsahoval Cu(II) - LN - [Ni(CN)4]2- (1:2:1) (LN = N, N-dimethylethylenediamine (dmen); N,N'-dimethylethylenediamine (bmen); N,N,N',N'-tetramethylethylenediamine (tmen) )byly izolovány tři nové sloučeniny: Cu(dmen)2Ni(CN)4 (CDNC), Cu(bmen)2Ni(CN)4 (CBNC) and Cu(tmen)Ni(CN)4 (CTNC). Rentgenová strukturní analýza prokázala, že CDNC má jednodimenzionální strukturu tvořenou nekonečnými kvazi.lineárními 2,2-TT řetězci rovnoběžnými s c osou. Měření provedené EPR spektroskopií indikují lokální symetrii okolí nepárového elektronu jako axiální pro CDNC a CTNC a rombickou pro CBNC.

Links

• MSM 143100011, plan (intention): Name: Struktura a vazebné poměry, vlastnosti a analýza syntetických a přírodních molekulových ansamblů

Investor: Ministry of Education, Youth and Sports of the CR, Structure and character of bonding, properties and analysis of synthetic and natural molecular ensembles