Stacking segregated stacks

Alternated stack Segregated stack Anion-radical salt Cation-radical salt... 

A number of other donor—acceptor molecular soHds such as TMPD -TCNQ or TMPD chloraniF crystalline as mixed stacks of alternating D and A molecules. These compounds typically have much higher resistivities than the segregated salts because the alternating -DADA- sequence leaves no continuous channel for conduction. 

Storage Segregated storage Uncongested storage of combustibles gangways/adequate breaks Material stacked in the open should be away from windows Flammable liquids in properly designed storerooms bulk quantities in fixed, bunded, adequately spaced tanks... 

Segregate highly flammable liquids and mark the stack classify the area as Zone 2. Place material >15 m from any working building, amenity building or plant and >7.5 m from plant boundary and boundary fence. 

Preferably, the HjS flare system should consist of a segregated header and separate line routed up the side of a conventional elevated flare stack, sharing the same structure, pilots and igniters. However, the HjS header may be tied into the regular flare seal drum if there are special mechanical design problems associated with the separate stack e.g., in the case of a flare which is to be dismantled for overhaul. Flare elevation must be sufficient to meet atmospheric pollution and ground level concentration requirements for the sulfur dioxide produced. 

Salts with Segregated Stacks and Other Structures. 136... 

In the salts based on segregated stacks of metallocenium-based cations with [M(mnt)2)] (M = Ni, Pd and Pt) anions, the anionic stacks are isolated from each other by the cations in a few compounds these stacks are regular (at high temperatures) but in most cases the [M(mnt)2)] units form dimers. The magnetic behavior of these compounds is dominated by the AF interactions between the anion units. 

The crystal structure of [Fe(Cp)2]2[Ni(mnt)2]2[Fe(Cp)2] is composed by segregated stacks of pairs of cations, [Fe(Cp)2]+, and zig-zag dimerized anions stacks, with a neutral [Fe(Cp)2] molecule laying beside each anionic dimer [65]. In the case of [Co(Cp)2][Ni(dmit)2], the crystal structure consists of layers composed by two types of chains formed by the [Ni(dmit)2] anions, through short S—S contacts. Cation pairs are located between the anionic stacks [68], In the crystal structure of [Co(Cp)2][Ni(dmit)2]3 2MeCN, the partially oxidized anions form... 

The crystal structure of [Fe(C5H4R)2][Ni(mnt)2] ([Fe(C5R)2]+ = l,l -bis[2-(4-(methylthio)-( )-ethenyl]ferrocenium) is based on segregated chains of cations and anions. The stacks of anions are isolated by the cations and consist of a packing of dimers. In this compound yT decreases cooling, which indicating the presence of dominant AF interactions [66]. 

More recently, Adams and coworkers have provided a very interesting case of heteronuclear clusters that are very active for the hydrogenation of alkynes [4, 54, 55]. The high-nuclearity layer-segregated Pt-Ru complex [Pt3Ru6(CO)21(jU3-H)(/ -H)j], consisting of three stacked triangular layers of metal atoms with an... 

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