TY - JOUR
T1 - The odd-even effect in n-carboxyalkylammonium-containing organic-inorganic hybrids of Mn(ii) halides
T2 - structural and magnetic characterisation
AU - Bothma, Shalene N.
AU - Sheppard, Charles J.
AU - Turnbull, Mark M.
AU - Landee, Christopher P.
AU - Rademeyer, Melanie
N1 - Publisher Copyright:
© 2023 The Royal Society of Chemistry.
PY - 2023/11/9
Y1 - 2023/11/9
N2 - The understanding of magnetic properties of hybrid compounds is important for the design of magnetic devices. In this contribution a prominent odd-even effect in both the structural characteristics and magnetic properties of four new hybrid compounds comprised of n-carboxyalkylammonium cations and perchloridomanganate anions is reported. When the n-carboxyalkylammonium cations contain an even number of carbon atoms, compounds of the formula (NH3(CH2)nCOOH)2[MnCl4], with n = 3 and 5, are formed, which display the two-dimensional (2D) hybrid halide perovskite structure in which bridging chlorido ligands link Mn2+ ions. Compounds containing n-carboxyalkylammonium cations with an odd number of carbon atoms have the formula (NH3(CH2)nCOOH)2[MnCl4(H2O)2], with n = 2 and 4, and display a zero-dimensional (0D) structure with hydrogen bonding interactions linking neighbouring [MnCl4(H2O)2]2− anions. The odd-even effect is also evident in the magnetic properties of the compounds, which are linked to the structural differences observed in these compounds. Compounds containing an even number of carbon atoms show antiferromagnetic (AFM) interactions and spin canting at temperature TN, with 2JK = −8.28(5) K and TN = 45.0(5) K when n = 3 and 2JK = −7.72(4) K and TN = 43(1) K when n = 5. Much weaker AFM interactions and no spin canting is observed in compounds containing an odd number of carbon atoms, with 2JK = −0.14(2) K when n = 2 and 2JK = −0.14(2) K when n = 4.
AB - The understanding of magnetic properties of hybrid compounds is important for the design of magnetic devices. In this contribution a prominent odd-even effect in both the structural characteristics and magnetic properties of four new hybrid compounds comprised of n-carboxyalkylammonium cations and perchloridomanganate anions is reported. When the n-carboxyalkylammonium cations contain an even number of carbon atoms, compounds of the formula (NH3(CH2)nCOOH)2[MnCl4], with n = 3 and 5, are formed, which display the two-dimensional (2D) hybrid halide perovskite structure in which bridging chlorido ligands link Mn2+ ions. Compounds containing n-carboxyalkylammonium cations with an odd number of carbon atoms have the formula (NH3(CH2)nCOOH)2[MnCl4(H2O)2], with n = 2 and 4, and display a zero-dimensional (0D) structure with hydrogen bonding interactions linking neighbouring [MnCl4(H2O)2]2− anions. The odd-even effect is also evident in the magnetic properties of the compounds, which are linked to the structural differences observed in these compounds. Compounds containing an even number of carbon atoms show antiferromagnetic (AFM) interactions and spin canting at temperature TN, with 2JK = −8.28(5) K and TN = 45.0(5) K when n = 3 and 2JK = −7.72(4) K and TN = 43(1) K when n = 5. Much weaker AFM interactions and no spin canting is observed in compounds containing an odd number of carbon atoms, with 2JK = −0.14(2) K when n = 2 and 2JK = −0.14(2) K when n = 4.
UR - http://www.scopus.com/inward/record.url?scp=85178259250&partnerID=8YFLogxK
U2 - 10.1039/d3ce00855j
DO - 10.1039/d3ce00855j
M3 - Article
AN - SCOPUS:85178259250
SN - 1466-8033
VL - 25
SP - 6568
EP - 6591
JO - CrystEngComm
JF - CrystEngComm
IS - 47
ER -