Characterization and studies of some four, five and six coordinate transition and representative metal complexes of tris-(hydroxymethyl)-aminomethane

Dotson, Ronald L.

doi:10.1016/0022-1902(72)80110-6

Cited by 39 publications

(17 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The coordination spheres of both Cu(1I)-atoms are completed by the NH,-and OH-groups of the TRIS ligands and the C1-atoms. It should be noticed that, in contrast to the previous suggestions [4], TRIS is chelated to the central ions only within the same dinuclear unit and does not form bridges between those units. The Cu,O,-system is not planar as indicated by a dihedral angle of 42" between the CuO( 1)0(2) planes.…”

Section: Table 4 Selected Interatomic Distances and Anglesfor ( C U mentioning

confidence: 50%

“…In the case of compound 2, the X-ray crystallography revealed a structure significantly different from that previously postulated [4]. The compound consists of two 05 4 C6_.…”

Section: Table 4 Selected Interatomic Distances and Anglesfor ( C U mentioning

confidence: 58%

“…The behavior of the complexes in solution has been studied and in several cases the equilibrium constants have been determined [2] [3]. Preparation and stereochemistry in solid state of the TRIS complexes with metal ions of the first transition series have been also reported [4] [5]. In reaction with CuCl,, two different compounds were isolated and on the basis of IR and electronic spectra as well as magnetic and conductivity measurements they were assumed to be a monomeric species [Cu(TRISH_,)(TRIS)]Cl (1) and a dimer [Cu(TRISH-,)Cl], (2).…”

mentioning

confidence: 99%

“…Analytical grade tris-(hydroxymethyl)methylamine (Mrrckj was used without further purification. The Cu(I1) complexes have been prepared according to [4] and recrystallized twice from MeOH: [Cu(TRISH-,)(TRIS)]Br, blue crystalline solid (Anal. calc.…”

mentioning

confidence: 99%

See 3 more Smart Citations

Bonding Capabilities of the Biochemical Buffer TRIS toward Copper(II) Ion. Structure and Magnetic Properties of Binuclear and Tetranuclear Systems

Masi¹,

Mealli²,

Sabat³

et al. 1984

Helvetica Chimica Acta

View full text Add to dashboard Cite

SummaryFollowing X-ray crystal structure studies, the products of the reaction between Cu(I1) halides and tris(hydroxymethy1)methylamine (TRIS) can be formulated as [Cu(TRISH-,)(TRIS)],X, and [Cu(TRISH_,)X], (X = C1, Br). TRISH-, is the deprotonated ligand. Initial metal-ligand stoichiometric ratios of 1 : 2 and 1 : 1 are required to obtain the former and the latter species, respectively. Relevant crystal data for the dimeric compound with X = Br are: monoclinic, a = 11.394 (2) the arrangement is significantly puckered at this vector. One of these bridging O-atoms has p3 character as it serves as a weak apical donor for a Cu-atom of another binuclear unit. Thus a step-like geometry of the central core is obtained. Both compounds have constant magnetic moments at least down to the liquid N, temperature. In this respect, they differ from other complexes of Cu(I1) having comparable geometries, but temperature-dependent magnetic moments.Introduction. ~ The compound tris(hydroxymethy1)methylamine (TRIS)

show abstract

Section: Table 4 Selected Interatomic Distances and Anglesfor ( C U mentioning

confidence: 50%

“…In the case of compound 2, the X-ray crystallography revealed a structure significantly different from that previously postulated [4]. The compound consists of two 05 4 C6_.…”

Section: Table 4 Selected Interatomic Distances and Anglesfor ( C U mentioning

confidence: 58%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Bonding Capabilities of the Biochemical Buffer TRIS toward Copper(II) Ion. Structure and Magnetic Properties of Binuclear and Tetranuclear Systems

Masi¹,

Mealli²,

Sabat³

et al. 1984

Helvetica Chimica Acta

View full text Add to dashboard Cite

show abstract

“…The reactivity of commonly used buffering compounds towards a wide range of biomolecules, particularly ones incorporating metal ions, is now widely recognized . Tris (tris (hydroxymethyl)‐aminomethane) in particular is known to form complexes with a variety of transition metals, and we recently observed facile oxidation and ligand exchange within the [Ru II (NH 3 ) 5 Cl] + complex upon its placement in Tris buffer under aerobic conditions . Earlier studies of Ru III complexation by tris (hydroxymethyl)‐aminomethane resulted in the complex structure assignment as [(RuTCl) 2 ]Cl 2 , where T denotes tris (hydroxymethyl)‐aminomethane .…”

Section: Resultsmentioning

confidence: 99%

Ruthenium coordination preferences in imidazole‐containing systems revealed by electrospray ionization mass spectrometry and molecular modeling: Possible cues for the surprising stability of the Ru (III)/tris (hydroxymethyl)‐aminomethane/imidazole complexes

et al. 2019

View full text Add to dashboard Cite

Ruthenium is a platinoid that exhibits a range of unique chemical properties in solution, which are exploited in a variety of applications, including luminescent probes, anticancer therapies, and artificial photosynthesis. This paper focuses on a recently demonstrated ability of this metal in its +3 oxidation state to form highly stable complexes with tris (hydroxymethyl)aminomethane (H2NC(CH2OH)3, Tris‐base or T) and imidazole (Im) ligands, where a single RuIII cation is coordinated by two molecules of each T and Im. High‐resolution electrospray ionization mass spectrometry (ESI MS) is used to characterize RuIII complexes formed by placing a RuII complex [(NH3)5RuIICl]Cl in a Tris buffer under aerobic conditions. The most abundant ionic species in ESI MS represent mononuclear complexes containing an oxidized form of the metal, ie, [XnRuIIIT2 – 2H]+, where X could be an additional T (n = 1) or NH3 (n = 0‐2). Di‐ and tri‐metal complexes also give rise to a series of abundant ions, with the highest mass ion representing a metal complex with an empirical formula Ru3C24O21N6H66 (interpreted as cyclo(T2RuO)3, a cyclic oxo‐bridged structure, where the coordination sphere of each metal is completed by two T ligands). The empirical formulae of the binuclear species are consistent with the structures representing acyclic fragments of cyclo(T2RuO)3 with addition of various combinations of ammonia and dioxygen as ligands. Addition of histidine in large molar excess to this solution results in complete disassembly of poly‐nuclear complexes and gives rise to a variety of ionic species in the ESI mass spectrum with a general formula [RuIIIHiskTm (NH3)n − 2H]+, where k = 0 to 2, m = 0 to 3, and n = 0 to 4. Ammonia adducts are present for all observed combinations of k and m, except k = m = 2, suggesting that [His2RuIIIT2 − 2H]+ represents a complex with a fully completed coordination sphere. The observed cornucopia of RuIII complexes formed in the presence of histidine is in stark contrast to the previously reported selective reactivity of imidazole, which interacts with the metal by preserving the RuT2 core and giving rise to a single abundant ruthenium complex (represented by [Im2RuIIIT2 − 2H]+ in ESI mass spectra). Surprisingly, the behavior of a hexa‐histidine peptide (HHHHHH) is similar to that of a single imidazole, rather than a single histidine amino acid: The RuT2 core is preserved, with the following ionic species observed in ESI mass spectra: [HHHHHH·(RuIIIT2)m − (3m‐1)H]+ (m = 1‐3). The remarkable selectivity of the imidazole interaction with the RuIIIT2 core is rationalized using energetic considerations at the quantum mechanical level of theory.

show abstract

Direct Synthesis of Highly Designable Hybrid Metal Hydroxide Nanosheets by Using Tripodal Ligands as One‐Size‐Fits‐All Modifiers

Kuroda

Koichi

Muramatsu

et al. 2017

Chemistry A European J

View full text Add to dashboard Cite

How did the collaborationo nt his project start? This work is ac ollaboration between two research groups in Waseda University (Kuroda-Shimojima-Wada Laboratory,w ith an interest in the synthesis of inorganic solids from molecular precursors) and the University of To kyo (Mizuno-Yamaguchi Laboratory, with an interest in the catalysis of metal oxide cluster compounds like polyoxometalates). The collaboration started when one of the authors (Y.K.) moved between these groups. During many discussions , we came to the idea that several polyoxometalates can be regarded as building blocks of inorganic solids, and techniques developed specially for the chemical design of polyoxometalates can also be applied to inorganic solids like brucite-type layered metal hydroxides. Thus, we succeeded in establishing the novel synthetic concept of hybrid metal hydroxide nanosheets by combining the chemistries of layered metal hydroxides and polyoxometalates. What is the most significant result of this study? The modification reaction developed in this study can be applied to aw ide range of materials, in terms of constituent metallic elements of metal hydroxide nanosheets and those of surface functional groups. Because tripodal ligands have flexible tridentate binding sites, they can adjust their conformations to metal hydrox-ide nanosheets with different lattice constants;t his is expressed by the phrase "one-size-fits-all modifier" in the title. What was the inspiration for this cover design? The cover design was inspired by the Japanese Sushi culture. We enjoy various fishes in as tandardized style, in which as lice of af ish is placed on av inegared rice ball. In this study,w ec an provide various metal hydroxide nanosheets in as tandardized method. The future goal of this study will be the production of designed nanosheets which satisfy the demands of functional devices , in the same way as aS ushi master makes flavored Sushi that fits the customer's taste. Invited for the cover of this issue is the group of Yoshiyuki Kuroda and Kazuyuki Kuroda at the Waseda University in Tokyo. The image depicts how the production of diverse metal hydroxide nanosheets can be standardized in the same way as Sushi. Read the full text of the article at

show abstract

Characterization and studies of some four, five and six coordinate transition and representative metal complexes of tris-(hydroxymethyl)-aminomethane

Cited by 39 publications

References 23 publications

Bonding Capabilities of the Biochemical Buffer TRIS toward Copper(II) Ion. Structure and Magnetic Properties of Binuclear and Tetranuclear Systems

Bonding Capabilities of the Biochemical Buffer TRIS toward Copper(II) Ion. Structure and Magnetic Properties of Binuclear and Tetranuclear Systems

Ruthenium coordination preferences in imidazole‐containing systems revealed by electrospray ionization mass spectrometry and molecular modeling: Possible cues for the surprising stability of the Ru (III)/tris (hydroxymethyl)‐aminomethane/imidazole complexes

Direct Synthesis of Highly Designable Hybrid Metal Hydroxide Nanosheets by Using Tripodal Ligands as One‐Size‐Fits‐All Modifiers

Contact Info

Product

Resources

About