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There are three pluralizing strategies in Dolpo Tibetan (DT)2 — one for personal pronouns, an- other for animate nouns, and a third for inanimate nouns. The pluralizing strategy for personal pronouns appears to be old, similar to the system found in Classical Tibetan, but no longer found in ‘Standard Tibetan’.3 The strategies for animate and inanimate nouns point to relatively recent innovations, involving a set of morphemes whose literal meaning is roughly translated ‘all’. These more recent strategies are beginning to invade the semantic space of personal pronouns as well.

Tetrathiatriarylmethyl radicals (TAM or trityl) are receiving increasing attention in various fields of magnetic resonance such as imaging, dynamic nuclear polarization, spin labeling, and, more recently, molecular magnetism and quantum information technology. Here, a trityl radical attached via a phenyl bridge to a copper(II)tetraphenylporphyrin was synthesized, and its magnetic properties studied by multi‐frequency continuous‐wave electron paramagnetic resonance (EPR) spectroscopy and magnetic measurements. EPR revealed that the electron spin‐spin coupling constant J between the trityl and Cu2+ spin centers is ferromagnetic with a magnitude of −2.3 GHz (−0.077 cm−1, +JS→1S→2 ${+J{\vec{S}}_{1}{\vec{S}}_{2}}$ convention) and a distribution width of 1.2 GHz (0.040 cm−1). With the help of density functional theory (DFT) calculations, the obtained ferromagnetic exchange coupling, which is unusual for para‐substituted phenyl‐bridged biradicals, could be related to the almost perpendicular orientation of the phenyl linker with respect to the porphyrin and trityl ring planes in the energy minimum, while the J distribution was rationalized by the temperature weighted rotation of the phenyl bridge about the molecular axis connecting both spin centers. This study exemplifies the importance of molecular dynamics for the homogeneity (or heterogeneity) of the magnetic properties of trityl‐based systems. [ABSTRACT FROM AUTHOR]

Covalently-linked chromophore-radical systems with their unique optical and magnetic properties are useful for applications in, e. g., quantum information science. To expand the catalog of molecular systems, we synthesized and characterized six novel chromophore-radical and radical-chromophore-radical systems employing derivatives of perylene diimide (PDI) as the chromophore and trityl as the radical. The EPR properties of these compounds were evaluated in solution at cryogenic and room temperatures. In addition, the electron spin-spin coupling in the two bistrityl systems was investigated using DQC measurements. The presented results serve as a basis for further spectroscopic investigations under photoexcitation of the PDI core., (© 2023 The Authors. Chemistry - A European Journal published by Wiley-VCH GmbH.)

Tetrathiatriarylmethyl radicals (TAM or trityl) are receiving increasing attention in various fields of magnetic resonance, such as imaging, dynamic nuclear polarization, spin labeling, and, more recently, molecular magnetism and quantum information technology. Here, a trityl radical attached via a phenyl bridge to a copper(II)tetraphenylporphyrin was synthesized, and its magnetic properties studied by multi-frequency continuous-wave electron paramagnetic resonance (EPR) spectroscopy and magnetic measurements. EPR revealed that the electron spin-spin coupling constant J between the trityl and Cu2+ spin centers is ferromagnetic with a magnitude of 2.3 GHz (0.077 cm-1 (JS1S2 convention) and a distribution width of 1.2 GHz (0.040 cm-1). With the help of density functional theory (DFT) calculations, the obtained ferromagnetic exchange coupling, which is unusual for para-substituted phenyl-bridged biradicals, could be related to the almost perpendicular orientation of the phenyl linker with respect to the porphyrin and trityl ring planes in the energy minimum, while the J distribution was rationalized by the temperature weighted rotation of the phenyl bridge about the molecular axis connecting both spin centers. This study exemplifies the importance of molecular dynamics for the homogeneity (or heterogeneity) of the magnetic properties of trityl-based systems., (© 2022 Wiley-VCH GmbH.)