Priprava i karakterizacija miješanih metilamonijevih halogenometalata(II)

master's thesis

• Title (english): Synthesis and characterization of mixed methylammonium halometalates(II)
• Author: Petra Ferenčić
• Mentor: Mirta Rubčić (mentor)
• Mentor: Sanda Rončević (mentor)
• Committee member: Mirta Rubčić (predsjednik povjerenstva)
• Committee member: Đani Škalamera (član povjerenstva)
• Committee member: Iva Juranović Cindrić (član povjerenstva)
• Committee member: Tomislav Jednačak (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Chemistry); Zagreb
• Defense date and country: 2022-09-28, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Chemistry

Abstract

U okviru ovog diplomskog rada pripravljeni su metilamonijevi halogenometalatati(II) opće formule
(MA)2[MX4], (M2+ = Cu2+
, Mn2+
, X‒ = Cl‒
, Br‒
) te miješani derivati (MA)2[MClxBr(4-x)] (M2+ = Cu2+
,
Mn2+
), (MA)2[CuxMn(1-x)Cl4] i (MA)2[CuxMn(1-x)Br4]. Otopinskom sintezom polazeći od metilamina i
halogenidnih soli bakra(II) i mangana(II), uz dodatak HCl ili HBr pripravljeni su metilamonijevi
tetraklorokuprati(II), tetrakloromanganati(II) i tetrabromokuprati(II). Reakcijom CuO i metilamina uz
različite omjere HCl i HBr pripravljena je serija miješanih metilamonijevih halogenokuprata(II) (s
najvećim množinskim udjelom Br‒ od 0,6). Mehanokemijskom sintezom iz CH3NH3Br i CuBr2 odnosno
MnBr2 pripravljeni su (MA)2[CuBr4] te (MA)2[MnBr4]. Mehanokemijskom sintezom iz CH3NH3Cl i
CuCl2 (CuCl22H2O) i MnCl2 (MnCl24H2O) pripravljeni su (MA)2[CuCl4] i (MA)2[MnCl4].
Mehanokemijskom sintezom pripravljeni su miješani metilamonijevi halogenokuprati(II) i
halogenomanganati(II) kao i niz miješanih metilamonijevih tetraklorometalata(II) i
tetrabromometalata(II). Karakterizacija pripravljenih spojeva provedena je uz infracrvenu (IR)
spektroskopiju, difrakciju rendgenskih zraka na jediničnom kristalu i praškastim uzorcima. Maseni
udjeli Mn i Cu određeni su spektrometrijom masa uz induktivno spregnutu plazmu ICP-MS, dok su
udjeli ukupnih halogenida određeni titracijom prema Fajansu.

Abstract (english)

As a part of this diploma thesis, methylammonium halometalates(II) of the general formula
(MA)2[MX4], (M2+ = Cu2+
, Mn2+
, X‒ = Cl‒
, Br‒
) and mixed derivates (MA)2[MClxBr(4-x)] (M2+ = Cu2+
,
Mn2+
), (MA)2[CuxMn(1-x)Cl4] i (MA)2[CuxMn(1-x)Br4] were prepared. Methylammonium
tetrachlorocuprates(II), tetrachloromanganates(II) and tetrabromocuprates(II) were prepared by solution
synthesis starting from methylamine and halide salts of copper(II) and manganese(II), with the addition
of HCl or HBr. A series of mixed methylammonium (with the highest mass fraction of Br‒ of 0.6) was
prepared by the reaction of CuO and methylamine with different ratios of HCl and HBr. (MA)2[CuBr4]
and (MA)2[MnBr4] were prepared by mechanochemical synthesis from CH3NH3Br and CuBr2
respectively MnBr2. (MA)2[CuCl4] and (MA)2[MnCl4] were prepared from CH3NH3Cl and CuCl2
(CuCl2·2H2O) and MnCl2 (MnCl2·4H2O). Mixed methylammonium halocuprates(II) and
halomanganates(II) as well as a series of mixed methylammonium tetrachlorometalates(II) and
tetrabromometalates(II) were prepared by mechanochemical synthesis. The identification of the
prepared compounds was carried out with infrared (IR) spectroscopy, X-ray diffraction on a single
crystal and powder samples. The mass fractions of Mn and Cu were determined by mass spectrometry
with inductively coupled plasma ICP-MS, while the fractions of total halides were determined by Fajans
method of precipitation titration.

• Keywords: IR spektroskopija; slojeviti hibridni organsko-anorganski halogenometalati(II); spektrometrija masa uz induktivno spregnutu plazmu; titracija prema Fajansu
• Keywords (english): Fajans method of precipitation titration; IR spectroscopy; layered hybrid organicinorganic halometalates(II); mass spectrometry with inductively coupled plasma
• Language: croatian
• URN:NBN: urn:nbn:hr:217:200635
• Study programme: Title: Graduate university studies in chemistry; specializations in: Research programme; Course: Research programme; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra kemije (magistar/magistra kemije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access; Embargo expiration date: 2024-09-28
• Created on: 2022-10-13 15:54:51