All

What are you looking for?

All
Projects
Results
Organizations

Quick search

  • Projects supported by TA ČR
  • Excellent projects
  • Projects with the highest public support
  • Current projects

Smart search

  • That is how I find a specific +word
  • That is how I leave the -word out of the results
  • “That is how I can find the whole phrase”

Synthesis, characterization and structural systematics in diorganotin complexes with O,N,O' tris-chelating semirigid diaza-scaffolds: Mono- vs. di-nuclear Compounds

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62690094%3A18470%2F20%3A50017240" target="_blank" >RIV/62690094:18470/20:50017240 - isvavai.cz</a>

  • Result on the web

    <a href="https://www.sciencedirect.com/science/article/abs/pii/S0022328X20304253" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S0022328X20304253</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.jorganchem.2020.121522" target="_blank" >10.1016/j.jorganchem.2020.121522</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Synthesis, characterization and structural systematics in diorganotin complexes with O,N,O' tris-chelating semirigid diaza-scaffolds: Mono- vs. di-nuclear Compounds

  • Original language description

    A series of nine novel diorganotin(IV) complexes of O,N,O&apos; chelating ligands were synthesized viz., [n-Bu2Sn(L-2)](2)center dot 0.25(C6H14) (1), [Me2Sn(L-1)](2)center dot(C7H8) (2), [n-Bu2Sn(L-1)](2)center dot(C7H8) (3), [Me2Sn(L-3)](2)center dot(C7H8) (4), 2 [n-Bu2Sn(L-3)](2)center dot 4 (n-Bu2Sn(L-3)) (5), [Ph2Sn(L-3)] (6), [Ph2Sn(L-1)] (7), [Ph2Sn(L-4)] (8) and [Ph2Sn(L-2)] (9) and structurally characterized. The ligand scaffolds differ with respect to the chemical link between the coordinating N and O atoms, which is either an alkyl or an aryl moiety. Diffraction results indicate that the smallest methyl groups favor dimerization via Sn-O-Sn bridging and six-coordination at the cation. Among these dinuclear derivatives, more asymmetric oxygen bridges and longer Sn center dot center dot center dot Sn separations are found for the less nucleophilic phenolate O. In contrast, the bulky phenyl substituents prevent aggregation for both classes of ligands and always lead to five-coordinated mononuclear species. The n-Bu groups are sterically more demanding than Me but flexible, resulting in an intermediate behavior. When the O,N,O&apos; ligand with phenolate O coordinates a Sn(n-Bu)(2) fragment, a borderline situation occurs and both mono- and dinuclear complexes coexist in the same crystalline solid. The overall structural variety is reflected in a range of different Addison-tau(5) [Addison et al., J. Chem. Soc., Dalton Trans. 1984, 1349-1356] descriptors for five-fold coordination. For better comparability we introduce a slightly modified geometry index tau&apos;(5), in which the basal angle alpha is subtended by the organic substituents, regardless of its absolute value. tau&apos;(5) represents a sensitive indicator for the coordination geometry about Sn-IV. Tin NMR results revealed that all compounds exist as mononuclear pentacoordinated species in solution. (c) 2020 Elsevier B.V. All rights reserved.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10402 - Inorganic and nuclear chemistry

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2020

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of organometallic chemistry

  • ISSN

    0022-328X

  • e-ISSN

  • Volume of the periodical

    927

  • Issue of the periodical within the volume

    November

  • Country of publishing house

    CH - SWITZERLAND

  • Number of pages

    11

  • Pages from-to

    "Article Number: 121522"

  • UT code for WoS article

    000579416000011

  • EID of the result in the Scopus database

    2-s2.0-85091078860