Sentence Examples

  • It remains, therefore, to consider Erlenmeyer's formula and those derived from the centric hypothesis.
  • On the centric hypothesis two formulae are possible: (1) due to H.E.
  • When, as in the formation of naphthalene tetrachloride, for example, the one ring becomes saturated, the other might be expected to assume the normal centric form and become relatively inactive.
  • The centric formula proposed by Bamberger represents naphthalene as formed by the fusion of two benzene rings, this indicates that it is a monocyclic composed of ten atoms of carbon.
  • In this formula, the so-called " centric formula," the assumption made is that the fourth valencies are simply directed towards the centre of the ring; nothing further is said about the fourth valencies except that they exert a pressure towards the centre.

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