Interconnects rings

Structure of SnFj showing (a) interconnected rings of (SnjEi(Fj)). and (b) the unsymmetiicai 3 + 3 coordination around Sn. 

Figure 1.15 The Butterfly Angle . Tricyclic drugs consist of anticonvulsants (carbamazepine), antidepressants (amitriptyline), and antipsychotics (chlorpromazine). Although aU three families consist of three interconnected ring systems, the orientation between the rings varies, imparting a different spectrum of bioactivity.

Some ring structures are much more complicated. The potent poison strychnine is a tangle of interconnecting rings. 

Complex bimetallic quinary compormds Ba2CaM M Fi4 and Ba7M M F34 with stmctures built from interconnected rings of four or eight octahedra, respectively, attracted interest because of their low-dimensional magnetic properties when appropriately substituted by transition metal ions (see recent survey in Refs. 157 and 158). The basic chain elements derived from the minerals usovite and jarlite are shown in Figure 35. 

The two topological isomers A and B of interconnected rings (reproduced with permission from reference , copyright 1961, American Chemical Society). 

Strategies for the synthesis of interconnected rings using a metal template the groups f and g selectively bind to each other (from reference i] p 801)... 

A different tubular design is being pursued in Japan by Mitsubishi Heavy Industries (MHI). The single cells are positioned on a central porous support tube and electrically connected in series using ceramic interconnect rings. This leads to an increased voltage at the terminals of the individual tubes. The fuel is fed into the inside of the tube and air is supplied to the exterior [2, 9]. The maximum tube length is 1.5 m with an external diameter of 28 mm. With... 

One of the most compact and condensed carbon frameworks consisting of multiple interconnected ring systems, coleophomones B-C (148, 151) - isolated from a Stachybotrys cylindrospora fungal broth, has an antifimgal activity and inhibits the serine protease enzyme, heart chimase. The 11-membered ring of these two compounds was constructed using an impressive olefin metathesis reaction to build the C16-C17 bond (Equations 1 and 2, Scheme 5.34). RCM reactions proceeded with excellent yields and selectivities for both members of the family [66]. 

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