Cobalt(II) and iron(II) tris(trimethylsilyl)siloxides: synthesis, structure and reactivity

Chesnokova, T. A.; Zhezlova, E. V.; Kornev, A. N.; Fedotova, Yana V.; Zakharov, L. N.; Fukin, Georgy K.; Kursky, Yurii A.; Mushtina, T. G.; Домрачев, Г. А.

doi:10.1016/s0022-328x(01)01095-6

Cited by 16 publications

(14 citation statements)

References 17 publications

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“…A search for a tri(organosilyl)siloxy ligand attached to a metal produced six unique hits. These include Fe II and Co II complexes (Kornev et al, 1997 andChesnokova et al, 2002), lanthanide(III) complexes (Kornev et al, 1999), and Ta V complexes (Wu et al, 2002).…”

Section: Database Surveymentioning

confidence: 99%

Potassium chloridotris(hypersiloxy)aluminate dimer

Purdy

Butcher

2019

Acta Cryst E

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The tris(trimethylsilylsiloxide) ligand, also known as hypersiloxide, is an extremely bulky group. In an attempt to make the monomeric Al(OSi(SiMe3)3)3, AlCl3 was combined with 3 equiv. of potassium hypersiloxide. The crystalline product isolated (40% yield), namely di-μ3-chlorido-bis[μ2-tris(trimethylsilyl)silanolato]tetrakis[tris(trimethylsilyl)silanolato]dialuminiumdipotassium, [Al2K2Cl2(C19H27OSi4)6], is a KCl adduct of aluminium tris(hypersilyloxide) that is dimerized through a planar K2Cl2 ring, with K—Cl distances of 3.1131 (8) and 3.319 (3) Å, and ring angles of 77.41 (2) and 102.60 (2)°. This ring is on an inversion center, and there is no supramolecular coordination.

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Section: Database Surveymentioning

confidence: 99%

Potassium chloridotris(hypersiloxy)aluminate dimer

Purdy

Butcher

2019

Acta Cryst E

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“…published the iron siloxide compound 12 exhibiting an iron(II) ion in an unsaturated coordination sphere with only three occupied coordination positions (see Scheme ), which is very rare for iron(II) 59. 60…”

Section: Iron Siloxide Complexesmentioning

confidence: 99%

Iron Silicates, Iron‐Modulated Zeolite Catalysts, and Molecular Models Thereof

Pinkert

Limberg

2014

Chemistry A European J

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Iron centres incorporated in silicate frameworks or located in their pores have been shown to possess unique catalytic properties. As compared to aluminosilicates this area of zeolite chemistry is much younger and in the first part of this review the findings made so far are summarised. Molecular model compounds may help to understand the formation, corrosion and reactivity of such materials or to even develop new ones. Hence, the subsequent parts deal with molecular iron siloxides, the number of which is still quite limited, and their behaviour also in relation to the iron-modified zeolites is outlined. At first, compounds based on an incompletely condensed cubic silsequioxane are discussed, before iron(III) complexes of more basic siloxide ligands with varying steric demands are described. Finally, recent developments based on branched polydentate siloxides are presented.

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“…Cobalt(II) and iron(II) silanolates of the general formula 37a ± k were prepared by the reaction of tris(trimethylsilyl)silanol with the corresponding silylamides. 136 The reaction of FeBr 2 with (Me 3 Si) 3 SiONa in dimethoxyethane was also used for the preparation of the ate-complex (Me 3 Si) 3 SiOFe[m-OSi(SiMe 3 ) 3 ] 2 . .Na(DME) (38).…”

Section: B Phosphorusmentioning

confidence: 99%

“…4,4 H -Bipyridyl interacts with silanolates 37a,j to give insoluble coordination compounds 37h,l. 136 It is of note that iron tris(trimethylsilyl)silanolates 37j, 38 are pyrophoric in air, although they are in fact oxides. The oxidation of the Si7Si bonds proceeds at a high rate due to activation of the O 2 molecule on the coordinatively unsaturated iron atom.…”

Section: B Phosphorusmentioning

confidence: 99%

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The tris(trimethylsilyl)silyl group in organic, coordination and organometallic chemistry

Корнев¹

2004

Russ. Chem. Rev.

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The signal properties of polycrystalline mercuric iodide (HgI 2 ) film detectors, under irradiation conditions relevant to mammographic, radiographic, fluoroscopic and radiotherapy x-ray imaging, are reported. Each film detector consists of an ∼230 to ∼460 µm thick layer of HgI 2 (fabricated through physical vapour deposition or a screen-print process) and a thin barrier layer, sandwiched between a pair of opposing electrode plates. The high atomic number, high density and low effective ionization energy, W EFF , of HgI 2 make it an attractive candidate for significantly improving the performance of active matrix, flat-panel imagers (AMFPIs) for several x-ray imaging applications. The temporal behaviour of current from the film detectors in the presence and in the absence of radiation was used to examine dark current levels, the lag and reciprocity of the signal response, x-ray sensitivity and W EFF . The results are discussed in the context of present AMFPI performance. This study provides performance data for a wide range of potential medical x-ray imaging applications from a single set of detectors and represents the first investigation of the signal properties of polycrystalline mercuric iodide for the radiotherapy application.Z Su et al

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Cobalt(II) and iron(II) tris(trimethylsilyl)siloxides: synthesis, structure and reactivity

Cited by 16 publications

References 17 publications

Potassium chloridotris(hypersiloxy)aluminate dimer

Potassium chloridotris(hypersiloxy)aluminate dimer

Iron Silicates, Iron‐Modulated Zeolite Catalysts, and Molecular Models Thereof

The tris(trimethylsilyl)silyl group in organic, coordination and organometallic chemistry

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