Richter system

Although the Hill system is now used almost exclusively, other systems have been used in the past. For example, the early formula indexes to Beilstein used the Richter system, in which the elements are cited in the order C, H, O, N, Cl, Br, I, F, S, R... 

There are two systems of formula indexing in common use today, the Hill and the Richter systems. 

The arrangement of formulas within the index by the Richter system may be termed a semiclassified order, depending on ... 

Certain modifications of the Richter system have been made in Stelzner (21), Beilstein, and Chemisches Zentralblatt (Table I). Unless otherwise stated, the following rules apply to all three formula indexes. Corresponding entries are given for Chemical Abstracts. 

The formula index, which includes only organic formulae, used the Richter system until 1956. Under this compounds are arranged by the number of carbon atoms they contain and then by the number of other elements in the molecule besides carbon in the... 

Faraday s Encyclopaedia of Hydrocarbon Compounds (Fig. 30) edited by J. E. Faraday and A. S. Freeborn (Butterworths) is a loose-leaf compilation in 18 volumes of data on hydrocarbons arranged by the Richter system to Cj4Hi8 and taken from Beilstein and the three abstract journals, British Chemical Abstracts, Chemical Abstracts and Chemisches Zentralblatt. References to the original literature are given to show for each compound its molecular and structural formula, its names, occurrence in nature, methods of preparation, detection and... 

Richter, R., Burns, R.S., Polkinghorne, M.N. and Nurse, P. (1997) A Predictive Ship Control using a Fuzzy-Neural Autopilot. In Eleventh Ship Control Systems Symposium, Southampton, UK, 14-18 April, 1, pp. 161-172. 

Richter, S. H., Size Relief Systems for Ttvo-Phase Flow, Hydro. Proc., V. 87, No. 7, 1978, p. 145. 

Ehreeld, W., Gebauer, K., Lowe, H., Richter, T., Synthesis of ethylene oxide in a catalytic microreactor system. Stud. 

H., Richter, T., Storz, M., Wole, A., WoRZ, O., Breysse, J., High temperature HCN generation in an integrated Microreaction system, in Ehreeld, W. (Ed.), Microreaction Technology 3rd International Conference on Microreaction Technol-ogy, Proc. of IMRET 3, pp. 152-164, Springer-Verlag, Berlin (2000). 

Richter, T, Eheeeld, W., Gebauee, K., Golbig, K., Hessel, V., Lowe, H., Wole, A., Metallic microreactors components and integrated systems, in Eheeeld, W., Rinaed, 1. H., Wegeng, R. S. (Eds.), Process Miniaturization 2nd International Conference on Microreaction Technology, IMRET 2, Topical Conf Preprints, pp. 146-151, AlGliE, New Orleans (1998). 

Richter, D., Monkenbusch, M. and Colmenero,. Neutron Spin Echo in Polymer Systems. Vol. 174, pp. 1-221. 

Vaezi M.F., Lacamera R.G., Richter J.E., Validation studies of Bilitec 2000 an ambulatory duodenogastric reflux monitoring system., AmJ.Physiol. 1994 G1050. 

Notwithstanding, after hydrogen, helium is also the simplest naturally available atomic species, which, in contrast to one electron atoms, exhibits the additional electron-electron interaction, as a source of electronic correlations. Hence, helium is one of the simplest systems where electronic correlations can be studied. Direct manifestations of electronic correlations have been found, e.g., in doubly excited states of helium localized along highly asymmetric, though very stable, frozen planet configurations (FPC) (K. Richter et.al., 1990), or scarred by... 

K. Richter, Semiclassical Theory of Mesoscopic Quantum Systems. Springer, Berlin... 

Lobachyov, K.V. and Richter, H.J. (1998). An Advanced Integrated Biomass Gasification and Molten Fuel Cell Power System, Energy Corners. Manage. 39. pp. 1931-1943. 

Bonnemann, EL, Brijoux, W., Brinkmann, R., and Richter, J., Process for producing tenside-stabilized colloids of mono- and bimetals of the group VIII and lb of the periodic system in the form of precursors for catalysts which are isolable and water soluble at high concentration, US. Pat., 849,482, 1997 (to Studiengesellschaft Kohle mbH). 

Gaut JP, Yeh GC, Tran HD, Byun J, Henderson JP, Richter GM, Brennan ML, Lusis AJ, Belaaouaj A, Hotchkiss AS, Heinecke JW (2001) Neutrophils employ the myeloperoxidase system to generate antimicrobial brominating and chlorinating oxidants during sepsis. Proc Natl Acad Sci USA 98 11961-11966... 

The indexing of organic compounds described since 1922 has been taken over by the Chemisches Zentralblatt, which follows the system hitherto discussed. The collective indexes of this journal for 1922 to 1924,1925 to 1929, and 1930 to 1934 continue the classifying work of M. M. Richter. In these indexes the references are to the Zentralblatt itself. Each year of the Zentralblatt, from 1925 onwards, contains a formula index covering the annual increment of literature abstracted in this comprehensively planned journal. These formula indexes are amalgamated every few years into a collective index and individually they constitute the reference works for the period which has elapsed since the appearance of the last collective index. Consequently, when it is desired to have complete information from the whole literature about an organic substance, the following works must be consulted at the present day ... 

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