Comparison of properties and crystalline structures of nitrates, sulphates and phosphates of Co(II) and Ni(II)
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Mostrar el registro completo del ítemcomunitat-uji-handle:10234/158176
comunitat-uji-handle2:10234/71324
comunitat-uji-handle3:10234/98504
comunitat-uji-handle4:
TFG-TFMMetadatos
Título
Comparison of properties and crystalline structures of nitrates, sulphates and phosphates of Co(II) and Ni(II)Autoría
Tutor/Supervisor; Universidad.Departamento
Tena Gómez, María Ángeles; Universitat Jaume I. Departament de Química Inorgànica i Orgànica; Sancho Llopis, Juan Vicente; Universitat Jaume I. Departament de Química Física i AnalíticaFecha de publicación
2021-07-09Editor
Universitat Jaume IResumen
The main objective of this project is to compare crystalline properties and structures of
nitrates, sulphates and phosphates of Co(II) and Ni(II).
Cobalt (Z = 27) and nickel (Z = 28) are transition metals. They ... [+]
The main objective of this project is to compare crystalline properties and structures of
nitrates, sulphates and phosphates of Co(II) and Ni(II).
Cobalt (Z = 27) and nickel (Z = 28) are transition metals. They present a valence shell with
multiple electrons, cobalt is a d7
and nickel is a d8
, so they have the ability to give or receive
electrons. Moreover, they can also change their oxidation state, being +2 the most common
one, but they can also appear in the neutral form (0), +1 and +3. In few compounds, cobalt can
present an oxidation state of +4.
When studying the different structures, it is important to remark that they can form multiple
polymorphs and appear in different symmetries, so there are plenty of possibilities. For
example, phosphates are divided in diphosphates [M2P2O7] and orthophosphates [M3P2O8].
The studied structures are: trigonal Co(NO3)2, trigonal Ni(NO3)2 and cubic Ni(NO3)2; both α and
β-CoSO4 and β-NiSO4; both monoclinic α and β-Co2P2O7 and both monoclinic α and β-Ni2P2O7;
stable Co3P2O8 and metastable Co3P2O8 and Ni3P2O8.
Each structure has particular properties, so the main objective of this paper is to determine
which are the most common ones and see how they vary when changing the main ion (Co and
Ni) and changing their crystalline structures. [-]
Palabras clave / Materias
Descripción
Treball Final de Grau en Química. Codi: QU0943. Curs acadèmic: 2020/2021
Tipo de documento
info:eu-repo/semantics/bachelorThesisDerechos de acceso
info:eu-repo/semantics/openAccess
Aparece en las colecciones
- Grau en Química [265]