Self-assembly of heterodinuclear triple-stranded helicates: control by coordination number and charge.
نویسندگان
چکیده
Acylhydrazones of 2,3-dihydroxybenzaldehyde are easily accessible and afford heterodinuclear helicates; the self-assembly is specific when the resulting coordination compounds are neutral in charge.
منابع مشابه
Discriminating between lanthanide ions: self-assembly of heterodimetallic triple-stranded helicates.
A bis-terdentate segmental ligand has been designed which self-assembles with lanthanide ions of different size to yield heterodimetallic triple-stranded helicates.
متن کاملSelf-assembly of looped triple-stranded helicates.
The reaction of the organogold metallaligand [(AuC[triple bond]Cbpyl)(2)(mu-Ph(2)P(CH(2))(4)PPh(2))] (bpyl = 2,2'-bipyridin-5-yl) with Fe(2+) or Zn(2+) ions gave helicates where the three ligand strands adopt a unique looped geometry.
متن کاملA Cobalt Supramolecular Triple-Stranded Helicate-based Discrete Molecular Cage
We report a strategy to achieve a discrete cage molecule featuring a high level of structural hierarchy through a multiple-assembly process. A cobalt (Co) supramolecular triple-stranded helicate (Co-TSH)-based discrete molecular cage (1) is successfully synthesized and fully characterized. The solid-state structure of 1 shows that it is composed of six triple-stranded helicates interconnected b...
متن کاملA simple thermodynamic model for quantitatively addressing cooperativity in multicomponent self-assembly processes--Part 2: Extension to multimetallic helicates possessing different binding sites.
The extended site-binding model, which explicitly separates intramolecular interactions (i.e., intermetallic and interligand) from the successive binding of metal ions to polytopic receptors, is used for unravelling the self-assembly of trimetallic double-stranded Cu(I) and triple-stranded Eu(III) helicates. A thorough analysis of the available stability constants systematically shows that nega...
متن کاملMonitoring helical twists and effective molarities in dinuclear triple-stranded lanthanide helicates.
The replacement of terminal benzimidazole-pyridine binding units in the neutral di-tridentate segmental ligand L1 with phenanthroline in L10 reduces the number of torsional degrees of freedom by two units. Reactions of these ligands with trivalent europium or lutetium cations yield structurally similar self-assembled dinuclear triple-stranded [Ln₂(Lk)₃]⁶⁺ complexes, thus demonstrating that the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Chemical communications
دوره 10 شماره
صفحات -
تاریخ انتشار 2009