2010
DOI: 10.1021/cm102388q
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Abstract: IV (CN) 8 ]} n chiral R and centric β crystallizing in space groups P4 1 and P1, respectively. Both polymorphs exhibit extremely similar structures and are soft ferrimagnets with critical temperatures of 43 and 42 K, respectively. The presence of coordinated urea in the noncentrosymmetric R produces NLO functionality, second harmonic generation (SHG), whereas centric β is just another molecular magnet. As a result of interaction of both functionalities below magnetic ordering temperature, the magnetization-ind… Show more

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Cited by 86 publications
(50 citation statements)
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“…[22][23][24]. Among octacyanometallates one can find slowly relaxing systems [25][26][27], guest-molecule absorptive porous networks [28,29], photomagnets [30,31], and magneto-optically active compounds [32], as well as molecular sponges, which change, in a reversible way, the ordering temperature T c and the coercive field H c upon hydration/dehydration process [33] and other functional materials [34]. Below, we discuss the magneto-thermal properties of the octacyanometallates showing the different types of crystal architecture.…”
Section: Introductionmentioning
confidence: 99%
“…[22][23][24]. Among octacyanometallates one can find slowly relaxing systems [25][26][27], guest-molecule absorptive porous networks [28,29], photomagnets [30,31], and magneto-optically active compounds [32], as well as molecular sponges, which change, in a reversible way, the ordering temperature T c and the coercive field H c upon hydration/dehydration process [33] and other functional materials [34]. Below, we discuss the magneto-thermal properties of the octacyanometallates showing the different types of crystal architecture.…”
Section: Introductionmentioning
confidence: 99%
“…3,4 The implementation of chirality into cyanido-based magnets results in the observation of natural optical activity, 5−10 combined with the magnetic optical activity enhanced in the magnetically ordered phase, as reported for enantiopure Mn II [Cr III (CN) 6 ] 3− and Mn II [Nb IV (CN) 8 ] 4− ferrimagnets. 11,12 The combination of magnetic ordering and noncentrosymmetricity gave the extraordinary cooperative effects of magnetic second harmonic generation 8,11 and multiferroicity. 12 Other functionalities, such as luminescence and proton conductivity, were also found in cyanido-bridged assemblies.…”
Section: ■ Introductionmentioning
confidence: 99%
“…Other coordination polymers that contain metal-bound urea are [Gd(urea) 4 (H 2 O 2 ) 2 ] 2 [Cr(CN) 6 ] 2 12 and [Mn(urea) 2 (H 2 O)] 2 [Nb(CN) 8 ]. 13 In the present work, we describe the structural and magnetic properties of MnCl 2 (urea) 2 which contains bi-bridged Mn-Cl 2 -Mn linear chains linked in three-dimensions by Cl⋯H-N and O⋯H-N hydrogen bond types. Various magnetic probes indicate short- and long-range ( T N = 3.1 K) magnetic ordering of the high-spin ( S = 5/2) ions where the ordered moments are aligned antiferromagnetically along the chain c -axis but ferro magnetically coupled along the a - and b -directions.…”
Section: Introductionmentioning
confidence: 99%