Aha−	acetohydroxamate
AlaAlaha−	alanyl-alanine hydroxamate
AlaGlyGlyha−	alanyl-glycyl-glycine hydroxamate
bpy	2,2′-bipyridine
cM	total concentration of the metal ion
Cp*	pentamethyl-cyclopentadienyl anion
DFT	Density Functional Theory
dien	diethylenetriamine
en	ethylenediamine
ESI-TOF-MS	Electrospray Ionization Time-of-flight Mass Spectrometry
GlyGlyAla	glycyl-glycyl-alanine
Imcha−	imidazole-carbohydroxamate
L	fully deprotonated form of a certain ligand
MCs	metallacrowns
NMe-AlaAlaha−	N-methyl-alanyl-alanine hydroxamate
NMe-AlaGlyGlyha−	N-methyl-alanyl-glycyl-glycine hydroxamate
NMe-Imcha−	N-methyl-imidazole-carbohydroxamate
NMR	Nuclear Magnetic Resonance Spectroscopy
p-cym	p-cymene (1-methyl-4-isopropylbenzene)
pic	2-picolylamine
pM	negative logarithm of the concentration of the free metal ion; cM 10−6 M, M:L = 1:10
pM’	negative logarithm of the total concentration of the non-chelatedmetal ion; cM = 10−6 M, M:L= 1:10
pn	propylenediamine
terpy	terpyridine
UV-VIS	Ultraviolet-visible Spectroscopy
α-Alaha−	α-alaninehydroxamate
β*/K’	conditional overall/stepwise stability constant, in which the extent of the competing processes under a certain condition is quantified. It is valid only under the given experimental condition
β-Alaha−	β-alaninehydroxamate
γ-Alaha− (GABAha−)	γ-alaninehydroxamate