Figure 1: Benzene is the simplest aromatic hydrocarbon Figure 2: Benzene has two resonance structures Toluene Toluene, alternatively known as methylbenzene, is another example of an aromatic hydrocarbon. Figure 3 shows that toluene is basically a benzene ring with a methyl group {eq}-CH_3 {/eq...
(gspE-4) 50.0% 25.0% 54.8% 36.6% 51.2% 36.3% 47.0% 34.5% 38.5% 38.2% 41.7% 46.5% CENTRAL INTERMEDIARY METABOLISM Degradation of polysaccharides AF1207 2-deoxy-D-gluconate 3-dehydrogenase (kduD) AF1795 endoglucanase (celM) 45.3% 55.4% Phosphorus compounds AF0756 exopolyphosphatase (ppx1) ...
We believe that this kind of reciprocative research is a potential way towards our big picture: building human-level intelligent systems with capabilities such as abstracting, explaining, learning, planning, and making decisions. And such intelligence may generally help people improve scientific research...
The aromatic rings need two chemical links to be broken for a chain break. Whereas one chemical link breaks in the case of aliphatic structures. Degradation of an aromatic and a straight-chain polymer due to thermal aging Hence mechanical properties, high-temperature capability, and chemical resist...
The assembly of the Biosolids List produced a total of 726 chemical substances (see S.I. Table1). A cursory review of the list indicates that many of these are defined as chemical substances (with distinct structures that would be detectable by mass spectrometry). Some of these substances des...
asymmetric synthesis, anychemical reactionthat affects the structural symmetry in the molecules of acompound, converting the compound into unequal proportions ofcompoundsthat differ in the dissymmetry of their structures at the affected centre. Such reactions usually involveorganic compoundsin which the symm...
Propose structures for compounds that fit the data: An alcohol with M+ = 88 and fragments at m/z = 73, m/z = 70, and m/z = 59. Deduce the identity of the compound from the data provided. C5H8O4: IR (cm-1): 2800-3300 (br...
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This page describes the Chemistry Academic Word List (CAWL), giving information on what the CAWL is, details about how it was developed, information on text coverage of the CAWL, mentions some problems with the published list, as well as giving a complete list of words in the CAWL. To exp...
JA Ripmeester,CI Ratcliffe,JS Tse - 《Journal of the Chemical Society Faraday Transactions》 被引量: 207发表: 1988年 Formation and chemical structures of acid-soluble lignin II: reaction of aromatic nuclei model compounds with xylan in the presence of a counterpart for co... To elucidate the...