Synthesis and characterization of Hg metal-doped C60

Venegas, V.; Ortíz-López, J.; Rueda-Morales, G.; Caleyo, F.

doi:10.1016/s0009-2614(00)00073-7

Cited by 5 publications

(4 citation statements)

References 23 publications

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“…28 In contrast to the large number of known alkali metal and alkaline earth metal fullerides, homologous compounds doped with transition metals are limited to as yet rather poorly characterized materials. 29,30 However, the incorporation of transition metals could result in the formation of very interesting, quite novel materials.…”

Section: Introductionmentioning

confidence: 99%

Dimer-formation in the bis(arene)chromium fulleride Cr(C7H8)2 C60

Hönnerscheid

Wüllen

Jansen

et al. 2001

The Journal of Chemical Physics

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Articles you may be interested inPhase transition temperature and paramagnetic effect in Al1 − x Cr x K(SO4)2·12H2O (x=0, 0.07, and 0.2) crystals studied by 27Al nuclear magnetic resonance relaxation time J. Appl. Phys. 113, 17E105 (2013); 10.1063/1.4793603 Superconductivity and spectroscopy of homo-and heterofullerides of alkali metals and thallium Low Temp. Phys. 37, 245 (2011); 10.1063/1.3580512Dimer formation in bis(toluene) chromium fulleride AIP Conf.Bis͑toluene͒chromium fulleride Cr͑C 7 H 8 ) 2 C 60 has been synthesized as a microcrystalline powder from C 60 and Cr͑C 7 H 8 ) 2 in toluene. One electron is transferred from the chromium complex to the fullerene resulting in a magnetic moment of about 2.5Ϯ0.2 B at room temperature, which corresponds to two electron spins per formula unit. At 250 K a reversible phase transition from a primitive cubic high temperature paramagnetic phase to a triclinic low temperature dimer phase occurs. The high temperature phase ͑Pm3m, aϭ9.986 Å͒ is constituted of dynamically disordered fulleride anions and bis͑toluene͒chromium ͑I͒ cations in a CsCl-type arrangement. The low temperature modification is triclinic ͑P1, aϭ13.541 Å, bϭ13.864 Å, cϭ14.122 Å, ␣ϭ120.59, ␤ϭ91.78, ␥ϭ116.88͒ and carries one unpaired electron per formula unit (ϭ1.72Ϯ0.01 B ), which according to ESR measurements is localized at the chromium site (g iso ϭ1.9870). The phase transition has been monitored by x-ray diffraction, ESR and solid state NMR spectroscopy as well as by SQUID measurements. All experimental results can consistently be described within the scenario of dimer formation of the C 60 monoanions during the transformation.

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Section: Introductionmentioning

confidence: 99%

Dimer-formation in the bis(arene)chromium fulleride Cr(C7H8)2 C60

Hönnerscheid

Wüllen

Jansen

et al. 2001

The Journal of Chemical Physics

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“…In the absence of any solvent no transfer of charges from Hg to the C 60 cage is observed [142]. The transition-metal fulleride Hg x C 60 can be synthesized by mixing C 60 and Hg and by heating it for several months.…”

Section: Reduction With Mercurymentioning

confidence: 99%

Reduction

2004

Fullerenes

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“…The structure is similar to that of pure C 60 , but with an expanded lattice consistent with mercury intercalation in octahedral sites. 79 The new bis(pyrazolyl)silane ligands (L) Me 2 Si(3,5-R 2 pz) 2 (R = H or Me) act as bidentates in forming the complexes, [ZnX 2 L] (X = Cl, Br or I). 80 The new compound diphenylphosphino(trimethylsilyl)amine, Ph 2 PN(H)SiMe 3 , reacts stoichiometrically with [Zn{N(SiMe 3 ) 2 } 2 ] to give [(Me 3 Si) 2 NZn(Ph 2 PNSiMe 3 )] 2 .…”

Section: Other Ligandsmentioning

confidence: 99%

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Malito¹

2001

Annu. Rep. Prog. Chem., Sect. A

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Synthesis and characterization of Hg metal-doped C60

Cited by 5 publications

References 23 publications

Dimer-formation in the bis(arene)chromium fulleride Cr(C7H8)2 C60

Dimer-formation in the bis(arene)chromium fulleride Cr(C7H8)2 C60

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