macrocyclic

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macrocyclic

(mak″rō-sik′lik) [ macro- + cyclic]
Composed of two or more linked, ring-shaped chemical structures.
References in periodicals archive ?
In axially ligated aluminium(III) porphyrin complexes, bands showed slight red shift corresponding to the structural distortion in the porphyrin macrocycle, and concomitant electronic coupling of the metalloporphyrin to the salicylate mediated by the aluminium metal ion.
Thus, we report very simple syntheses of two new benzofused macrocycles incorporating chalcone moiety by the use of very common starting materials.
Torsten Hegmann, MCIC, and MRSC, received his PhD in 2001 from the Martin-Luther University in Halle, Germany, under the supervision of Carsten Tschierske, for work on metal containing liquid crystals (or metallomesogens) and liquid crystal macrocycles. He then moved to Queen's University in Kingston, ON as a postdoctoral fellow in the group of Robert P.
According to the company, DIFICID is the first in a new class of antibiotics called macrocycles. DIFICID targets C.
This situation makes the incorporation of additional porphyrin macrocycles between the same two chains difficult (Figure 14(a)), which probably takes place only with one of the two chains that grows at every side of the molecular plane of the [H.sub.2]T(o-N[H.sub.2])PP species.
Donor effect on supramolecular structures of silver(I) perchlorate complexes of macrocycles with 02S2X (X = S, 0 and NH) donor sets.
People continually reinvent their careers, moving freely among, within, and outside the macrocycles and roles previously identified as the anticipated career paths of "healthy" individuals.
Bis-urea macrocycles have a drive to form nanotubes due to [eth]-stacking and the hydrogen bonding of adjacent urea groups.
January 5-6 UK Macrocycles & Supramolecular Chemistry meeting ( at TigerTiger, Springfield Hotel, Premier Lodge, Waterside Hotel, Swallow NewcastleGateshead.
Porphyrins are highly-absorbing conjugated macrocycles which serve a variety of essential functions in biologically active molecules such as chlorophyll, heme proteins and cyto-chromes; and which have a range of medicinal, industrial and scientific uses.
Cycles are classified as macrocycles and microcycles (Jonassen, Cernusca, & Ionas, 2007).
As mentioned earlier, our program is broken up into two macrocycles. These are further broken into mesocycles, each lasting three to four weeks (which is the amount of time it usually takes for adaptation to occur).