Heteroonium salts form molecular compounds of two forms with amines: true π complexes (charge-transfer complexes) and complexes with a localized σ bond between the components.doi:10.1007/BF00480575G. E. Ivanov1. Kiev Polytechnic Institute, USSR ;...
When the supersaturation is high enough and lasts long enough, crystals will form. Crystallization involves crystal nucleation, growth, and aggregation (2–5). Most crystals are, however, discharged during urination without causing any discomfort (6,7). But in some individuals, a number of ...
The homonuclear coupling constant value indicated that doublets form AB pairs. However, the 1D spectrum was not sufficient for a complete assignment. Figure 1 shows the 1H NMR of 3b as an example. Figure 1 NMR 1H. (a) TATU 1 and (b) 1-ethyl-1,3,6,8-tetraazatricyclo-[4.3.1.13,8]...
Communications Chemistrythanks Fateh Veer Singh and the other anonymous reviewer(s) for their contribution to the peer review of this work. Supplementary information Supplementary Information Description of Additional Supplementary Files Supplementary Data 1 ...
Organic neutral radicals have been predicted to exhibit various electronic functions such as electrical conduction. However, most organic neutral radicals are insulators, because they cannot form sufficient intermolecular interactions due to the bulky su
- 《Chemistry Letters》 被引量: 8发表: 1982年 Cooling rate dependence of the lattice parameters of (TMTSF)/sub 2/ClO/sub 4/ Summary form only given. The quasi-one-dimensional conductor (TMTSF)/sub 2/CIO/sub 4/ exhibits a ground state whose nature depends upon the cooling rate of... ...
Myung-Woo,Byun,and,... - 《Radiation Physics & Chemistry》 被引量: 37发表: 2002年 High-performance liquid chromatographic analysis of ascorbyl-2-phosphate in fish tissues L-Ascorbic-2-phosphate magnesium salt (APM) in fish tissues was determined by high-performance liquid chromatography. APM ext...
[113,114]. In transition metal carbonate hydroxides, the M ions coordinate with two oxygen atoms from CO32−and four OH−ions to form distorted octahedron with (4 + 2) coordination (Fig.2c) [115]. (4) Transition metal oxychlorides (such as Co2(OH)3Cl) are known as TMClHs ...
Methodology for preparing a geminal-bis(difluoramino)-substituted nitrogenous heterocycle has been reported by Chapman et al. [Journal of Organic Chemistry1998, 63, 1566-1570], who described the preparation of 3,3,7,7-tetrakis(difluoramino)octahydro-1,5-bis(4-nitrobenzenesulfonyl)-1,5-diazocin...
The hypergolic salts disclosed herein can, for example, be synthesized via proton transfer. In some examples, a direct acid base reaction was used (Reaction A), where decaborane can directly react with a base (B) to form a decaborane cluster anion and a protonated base ([H—B]). ...