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Volumn 46, Issue 20, 2007, Pages 8111-8113

New Mn12 clusters with tunable oxidation states via the use of N,N,N′,N′-tetrakis(2-hydroxyethyl)ethylenediamine

Author keywords

[No Author keywords available]

Indexed keywords

ETHANOLAMINE DERIVATIVE; MANGANESE; N (2 HYDROXYETHYL)ETHYLENEDIAMINE; N-(2-HYDROXYETHYL)ETHYLENEDIAMINE; UNCLASSIFIED DRUG;

EID: 35349023785     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic7011588     Document Type: Article
Times cited : (28)

References (18)
  • 15
    • 35348965244 scopus 로고    scopus 로고
    • Synthesis of 1. To a 20 mL MeCN solution of MnCl 2·4H2O (0.600 g, 2 mmol) and FeCl 3·6H2O (0.273 g, 1.0 mmol) was added a solution of H4edte (0.236 g, 1 mmol) and 2-aminoethanol (0.240 g, 4.0 mmol) or NaOH (0.160 g, 4.0 mmol) in MeCN. After 4 h of stirring, the reaction was left undisturbed for 2 weeks, yielding dark square-block crystals of complex 1, which were collected in ∼30% yield. Synthesis of 2. To a 20 mL MeCN solution of Mn(ClO4)2·6H2O (1.080 g, 3 mmol) was added a solution of H4edte (0.236 g, 1 mmol, 2-amino-ethanol (0.240 g, 4.0 mmol, and NaN3 (0.130 g, 2.0 mmol) in MeOH. After 4 h and following diffusion with THF for 1 week, black sheet crystals of complex 2 were collected in ∼75% yield. Synthesis of 3. To a 20 mL MeCN solution of Mn(ClO4)2· 6H2O 1.095 g, 3 mm
    • 2 in MeCN. 2-Aminoethanol acts as a base, while propane-1,3-diol was added to obtain good single crystals of 3. Caution! Perchlorate salts of metal complexes are potentially explosive and should be handled with care.
  • 16
    • 35349009140 scopus 로고    scopus 로고
    • Crystal data for 1: C50H101Mn 12Cl8N13O23 Mr, 2195.32, tetragonal, space group P4/ncc, a, 19.6410(16) Å, c, 20.772(3) Å, V, 8013.2-(15) Å3, T, 123(2) K, Z, 4, 25 928 reflections collected, 3798 independent reflections (Rint, 0.0974, R1, 0.0810, wR2, 0.1954 [I > 2σ(I, Crystal data for 2: C 44H95Mn12O25N35, Mr, 2173.83, monoclinic, space group P2 1/n, a, 11.4017(7) Å, b, 27.3994(17) Å, c, 25.8015(16) Å, β, 91.947(1)°, V, 8055.7(9) Å3, T, 123-(2) K, Z, 4, 32 876 reflections collected, 15 422 independent reflections Rint, 0.0458, R1, 0.0604, wR2, 0.1503 [I > 2σ
    • int = 0.0974), R1 = 0.0810, wR2 = 0.1954 [I > 2σ(I)]. Crystal data for 2: C (...)
  • 17
    • 35348970432 scopus 로고    scopus 로고
    • III ions in 1 gave oxidation state values of 2.681 and 2.812-3.128, respectively.
    • III ions in 1 gave oxidation state values of 2.681 and 2.812-3.128, respectively.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.