Cu-catalyzed oxidative coupling of the hexatriynyl complex Fp*−(C⋮C)3−H affords the dodecahexynediyl diiron complex Fp*−(C⋮C)6−Fp*. Its linear but slightly twisted structure has been revealed by X-ray crystallography.

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A series of polyynyl and polyynediyl complexes of iron, Fp*−(C⋮C) n −H [n = 2 (3)) and Fp*−(C⋮C) n −Fp* (n = 2 (4), 4 (5); Fp* = (η5-C5Me5)Fe(CO)2), have been prepared, and their linear structure has been confirmed by X-ray crystallography.

The prospect of laser cooling of polyatomic molecules has opened a new avenue in the search for the electric dipole moment of the electron (eEDM). An upper bound on the eEDM would probe new physics arising from beyond the Standard Model of elementary particles. In this work, we report the first theoretical results for the effective electric field experienced by the electron in YbOH, and its molecular electric dipole moment, using a relativistic coupled cluster theory. We compare these two properties of YbOH with YbF, which also has a singly unoccupied orbital on the Yb ion. We also present the results of the effective electric field for different bond angles, which sheds light on the sensitivity that can be expected from an eEDM experiment with YbOH.

a 60+ qubit quantum processor [14][15][16] should be sufficient to explore various quantum statistical properties of such phases of matter without resorting to the usual approximations [17][18][19]. This should allow us to explore their properties beyond the understanding conventional techniques provide [20][21][22].However, using these powerful noisy intermediate-scale quantum (NISQ) processors brings several serious complications associated with their use -beyond those associated with noise and imperfections. It is well-known that the amount of the information that can be extracted from quantum states is limited, and although we can reconstruct the quantum state or process through tomographic techniques [23], the number of measurements usually grows exponentially with the processor size [24,25]. This could make the entire effort for many-body dynamics simulation on a quantum information processor inefficient and ineffective. To overcome these limitations and