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The Crystal Structure of Tetramminopalladous Chloride. The Crystal Structure of Potassium Bromoselenite. The Normal State of the Hydrogen Molecule-Ion

Citation

Dickinson, Bernard Neil (1934) The Crystal Structure of Tetramminopalladous Chloride. The Crystal Structure of Potassium Bromoselenite. The Normal State of the Hydrogen Molecule-Ion. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/A597-FY24. https://resolver.caltech.edu/CaltechTHESIS:01252017-083837484

Abstract

An investigation of the crystal structure of tetramminopalladous chloride has considerable interest because of Werner's contention that compounds containing bivalent palladium (or platinum) possess a planar configuration consisting of four groups coordinated about the central palladium atom. The correctness of this assumption has been verified in the case of potassium chloroplatinite and palladite by the x-ray studies of Dickinson (1). Pauling (2) has shown theoretically that the bivalent transitional elements platinum, palladium, and nickel can form bonds directed toward the corners of a square. Recently Cox (3) has reported that tetramminoplatinous chloride, Pt(NH3)4Cl2·H2O, is in accord with Werner's viewpoint and has a structure closely similar to that of potassium chloroplatinite. The determination of the structure of tetramminopalladous chloride was undertaken to test Werner's assumption for a cation containing bivalent palladium. This palladium compound might reasonably be expected to have the same structure as Pt(NH3)4Cl2·H2O; it is shown in this paper that the structure is closely related to the potassium chloroplatinite structure but is based on a unit containing two molecules instead of one as reported by Cox for the platinum compound.

Tetramminopalladous chloride forms pale yellow tetragonal needles from a solution of diamminopalladous chloride in aqueous ammonia. In most cases the crystals we prepared developed prism faces belonging only to {110}.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:Chemistry
Degree Grantor:California Institute of Technology
Division:Chemistry and Chemical Engineering
Major Option:Chemistry
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Unknown, Unknown
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1934
Record Number:CaltechTHESIS:01252017-083837484
Persistent URL:https://resolver.caltech.edu/CaltechTHESIS:01252017-083837484
DOI:10.7907/A597-FY24
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:10026
Collection:CaltechTHESIS
Deposited By: Benjamin Perez
Deposited On:26 Jan 2017 20:15
Last Modified:04 Oct 2019 00:15

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