Data for: Behavioral variation post-invasion: resemblance in some but, not all, behavioral patterns among invasive and native praying mantids

Behavioral measurements of two sympatric species of mantids from a population in northern California. Columns include individual ID, species, sex, maximum mass, starting mass, trial number, assigned prey size, latency to move, time to leave circle, time to shelter, straight to shelter (binomial), number of prey eaten, latency to approach, and latency to strike

Data for: Behavioral variation post-invasion: resemblance in some but, not all, behavioral patterns among invasive and native praying mantids

Behavioral measurements of two sympatric species of mantids from a population in northern California. Columns include individual ID, species, sex, maximum mass, starting mass, trial number, assigned prey size, latency to move, time to leave circle, time to shelter, straight to shelter (binomial), number of prey eaten, latency to approach, and latency to strike

Data for: Behavioral variation post-invasion: resemblance in some but, not all, behavioral patterns among invasive and native praying mantids

Behavioral measurements of two sympatric species of mantids from a population in northern California. Columns include individual ID, species, sex, maximum mass, starting mass, trial number, assigned prey size, latency to move, time to leave circle, time to shelter, straight to shelter (binomial), number of prey eaten, latency to approach, and latency to strike

Nature of M–Ge Bonds in the Metallogermylene Complexes of Chromium, Molybdenum, and Tungsten [(η⁵‑C₅H₅)(CO)₃M{GeN(SiMe₃)R}] and [(η⁵‑C₅H₅)(CO)₃M{GeN(Ph)R}] (R = Ph, Mesityl (Mes)): A Theoretical Study

Geometry and bond energy analysis of M–Ge bonds in the terminal metallogermylenes of chromium, molybdenum, and tungsten [(η5-C5H5)­(CO)3M­{GeN­(SiMe3)­R}] and [(η5-C5H5)­(CO)3M­{GeN­(Ph)­R}] (R = Ph, mesityl (Mes)) were investigated by DFT methods (BP86, PBE, and PW91) and the DFT-D3_BJ level of theory. The calculated geometric parameters of the molybdenum–aminogermylene complexes are in excellent agreement with the available experimental values. The M–Ge bonds in these complexes are essentially M–Ge single bonds. The optimized Ge–N bond distances are slightly smaller than those expected for a single bond on the basis of covalent radii predictions. The bent coordination geometries at germanium (M–Ge–N bond angles in the range 115.3–118.5°) in these complexes are consistent with the presence of a divalent Ge­(II) atom, which is singly bonded to a transition metal and the nitrogen of the NRR′ groups. In all studied complexes, the π-bonding contributions to the total M–Ge bonds are significantly smaller (∼17–18%) than the corresponding σ-bonding contributions and they decrease upon going from M = Cr to M = W. The contributions of the electrostatic interaction ΔEelstat to the M–Ge bonds are larger than the covalent bonding components, ΔEorb. The DFT-D3 dispersion corrections to the BDEs between the metal fragments [(η5-C5H5)­(CO)3M]− and ligand fragments [GeN­(SiMe3)­R]+ for the PBE functional are in the range 5.9–8.4 kcal/mol, which are smaller than the corresponding DFT-D3­(BJ) dispersion corrections (8.1–9.9 kcal/mol)

Extremely Bulky Amido First Row Transition Metal(II) Halide Complexes: Potential Precursors to Low Coordinate Metal–Metal Bonded Systems

Reactions of the extremely bulky potassium amide complexes, [KL′(η⁶-toluene)] or [KL″] (L′/L″ = N­(Ar*)­(SiR₃), Ar* = C₆H₂{C­(H)­Ph₂}₂Me-2,6,4; R = Me (L′) or Ph (L″)), with a series of first row transition metal­(II) halides have yielded 10 rare examples of monodentate amido first row transition metal­(II) halide complexes, all of which were crystallographically characterized. They encompass the dimeric, square-planar chromium complexes, [{CrL′(THF)­(μ-Cl)}₂] and [{CrL″(μ-Cl)}₂], the latter of which displays intramolecular η²-Ph···Cr interactions; the dimeric tetrahedral complexes, [{ML′(THF)­(μ-Br)}₂] (M = Mn or Fe), [{ML″(THF)­(μ-X)}₂] (M = Mn, Fe or Co; X = Cl or Br) and [{CoL″(μ-Cl)}₂] (which displays intramolecular η²-Ph···Co interactions); and the monomeric zinc amides, [L′ZnBr­(THF)] (three-coordinate) and [L″ZnBr] (two-coordinate). Solution state magnetic moment determinations on all but one of the paramagnetic compounds show them to be high-spin systems. Throughout, comparisons are made with related bulky terphenyl transition metal­(II) halide complexes, and the potential for the use of the prepared complexes as precursors to low-valent transition metal systems is discussed

Extremely Bulky Amido First Row Transition Metal(II) Halide Complexes: Potential Precursors to Low Coordinate Metal–Metal Bonded Systems

Reactions of the extremely bulky potassium amide complexes, [KL′(η⁶-toluene)] or [KL″] (L′/L″ = N­(Ar*)­(SiR₃), Ar* = C₆H₂{C­(H)­Ph₂}₂Me-2,6,4; R = Me (L′) or Ph (L″)), with a series of first row transition metal­(II) halides have yielded 10 rare examples of monodentate amido first row transition metal­(II) halide complexes, all of which were crystallographically characterized. They encompass the dimeric, square-planar chromium complexes, [{CrL′(THF)­(μ-Cl)}₂] and [{CrL″(μ-Cl)}₂], the latter of which displays intramolecular η²-Ph···Cr interactions; the dimeric tetrahedral complexes, [{ML′(THF)­(μ-Br)}₂] (M = Mn or Fe), [{ML″(THF)­(μ-X)}₂] (M = Mn, Fe or Co; X = Cl or Br) and [{CoL″(μ-Cl)}₂] (which displays intramolecular η²-Ph···Co interactions); and the monomeric zinc amides, [L′ZnBr­(THF)] (three-coordinate) and [L″ZnBr] (two-coordinate). Solution state magnetic moment determinations on all but one of the paramagnetic compounds show them to be high-spin systems. Throughout, comparisons are made with related bulky terphenyl transition metal­(II) halide complexes, and the potential for the use of the prepared complexes as precursors to low-valent transition metal systems is discussed

Low-Coordinate Cobalt(I) Complexes Stabilized by an Extremely Bulky Amide Ligand

A series of low-coordinate, high-spin, mono- and dinuclear cobalt­(I) complexes bearing an extremely bulky amide (L″ = N­(Ar*)­(SiPh₃); Ar* = C₆H₂{C­(H)­Ph₂}₂Me-2,6,4) ligand have been synthesized and characterized. These include the first example of a neutral two-coordinate cobalt­(I) complex, [L″Co­(IPriMe)] (IPriMe = :C­{N­(Pr^<i>i</i>)­C­(Me)}₂), which has a near-linear cobalt coordination geometry

Synthesis and Reactivity of Alkali Metal Hydrido-Magnesiate Complexes which Exhibit Group 1 Metal Counter-Cation Specific Stability

Reactions of the series of alkali metal amides M­(HMDS) (M = Li–Cs; HMDS = [N­(SiMe3)2]−) with the neutral magnesium­(II) hydride compound [Mg­(BDIDipp)­(μ-H)]2 (BDIDipp = [CH­{C­(Me)­NDipp}2], Dipp = 2,6-iPr2-C6H3) have been carried out. When M = Li or Na, the reactions yielded Mg­(BDIDipp)­(HMDS) and MH as the primary products. In the sodium amide reaction, [Na2(HMDS)]­[{Mg­(BDIDipp)}2(H)3] was obtained as a low-yield by-product. When M = K–Cs, the reactions gave the group 1 metal hydrido-magnesiates, M2[Mg­(BDIDipp)­(HMDS)­(H)]2·(benzene)n (n = 0 or 1), the thermal stability of which increases with the increasing molecular weight of the alkali metal involved. Reactions of Cs2[Mg­(BDIDipp)­(HMDS)­(H)]2·(benzene) with 18-crown-6 and CO gave the first monomeric alkali metal hydrido-magnesiate [Cs­(18-crown-6)]­[Mg­(BDIDipp)­(HMDS)­(H)] and the ethenediolate complex Cs2[{Mg­(BDIDipp)­(HMDS)}2(μ-C2H2O2)], respectively. The new synthetic route to alkali metal hydrido-magnesiates described herein may facilitate further reactivity studies of this rare compound class

Unusual Reactivity of Methylphosphaalkyne (PCMe) toward Digermenes and Distannenes: Stepwise Formations of Bridged 2,3,5,6-Tetraphospha-1,4-dimethylidenecyclohexanes

Reactions of methylphosphaalkyne, PCMe, with a digermene, R″2GeGeR″2 (R″ = −CH(SiMe3)2), and two distannenes, R″2SnSnR″2 and Ar′2SnSnAr′2 (Ar′ = C6H2Pri3-2,4,6), have given moderate to high yields of the first bridged 2,3,5,6-tetraphospha-1,4-dimethylidenecyclohexanes, [R2E{C(Me)(H)PC(CH2)P}]2 (R = R″ or Ar′, E = Sn or Ge), all of which have been structurally characterized. Their mechanisms of formation are thought to involve successive [2 + 1] and [2 + 2] phosphaalkyne cycloaddition, heterocycle rearrangement, phosphaalkene/vinylphosphine tautomerization, and intermolecular hydrophosphination reactions. In one reaction, two intermediates have been spectroscopically observed and one trapped by coordination to one or two W(CO)5 fragments, yielding the first diphosphagermole complexes, {[W(CO)5}1or2{R″2Ge[C(Me)PC(Me)P]}], which have been structurally characterized. Differences between the reactivities of PCMe and PCBut are highlighted

Homo- and Heteroleptic Complexes of Four-Membered Group 13 Metal(I) N-Heterocyclic Carbene Analogues with Group 10 Metal(0) Fragments

A series of complexes between recently developed four-membered group 13 metal(I) heterocycles and group 10 metal(0) fragments have been prepared and structurally characterized. One prepared complex, [Pt{Ga[N(Ar)]2CNCy2}3] (Ar = C6H3Pri2-2,6; Cy = cyclohexyl), possesses the shortest Pt−Ga bonds yet reported, the covalent components of which are suggested by theoretical studies to have significant π character